From eea10b26f78806d7b244af7d37f75fd567c69610 Mon Sep 17 00:00:00 2001
From: David Tardon <dtardon@redhat.com>
Date: Mon, 25 Dec 2023 15:48:33 +0100
Subject: [PATCH] man: use same version in public and system ident.

---
 man/binfmt.d.xml                               | 2 +-
 man/bootctl.xml                                | 2 +-
 man/bootup.xml                                 | 2 +-
 man/busctl.xml                                 | 2 +-
 man/coredump.conf.xml                          | 2 +-
 man/coredumpctl.xml                            | 2 +-
 man/crypttab.xml                               | 2 +-
 man/daemon.xml                                 | 2 +-
 man/dnssec-trust-anchors.d.xml                 | 2 +-
 man/environment.d.xml                          | 2 +-
 man/file-hierarchy.xml                         | 2 +-
 man/homectl.xml                                | 2 +-
 man/homed.conf.xml                             | 2 +-
 man/hostname.xml                               | 2 +-
 man/hostnamectl.xml                            | 2 +-
 man/hwdb.xml                                   | 2 +-
 man/integritytab.xml                           | 2 +-
 man/iocost.conf.xml                            | 2 +-
 man/journal-remote.conf.xml                    | 2 +-
 man/journal-upload.conf.xml                    | 2 +-
 man/journalctl.xml                             | 2 +-
 man/journald.conf.xml                          | 2 +-
 man/kernel-command-line.xml                    | 2 +-
 man/kernel-install.xml                         | 2 +-
 man/libsystemd.xml                             | 2 +-
 man/libudev.xml                                | 2 +-
 man/loader.conf.xml                            | 2 +-
 man/locale.conf.xml                            | 2 +-
 man/localectl.xml                              | 2 +-
 man/localtime.xml                              | 2 +-
 man/loginctl.xml                               | 2 +-
 man/logind.conf.xml                            | 2 +-
 man/machine-id.xml                             | 2 +-
 man/machine-info.xml                           | 2 +-
 man/machinectl.xml                             | 2 +-
 man/modules-load.d.xml                         | 2 +-
 man/networkctl.xml                             | 2 +-
 man/networkd.conf.xml                          | 2 +-
 man/nss-myhostname.xml                         | 2 +-
 man/nss-mymachines.xml                         | 2 +-
 man/nss-resolve.xml                            | 2 +-
 man/nss-systemd.xml                            | 2 +-
 man/oomctl.xml                                 | 2 +-
 man/oomd.conf.xml                              | 2 +-
 man/org.freedesktop.LogControl1.xml            | 2 +-
 man/org.freedesktop.home1.xml                  | 2 +-
 man/org.freedesktop.hostname1.xml              | 2 +-
 man/org.freedesktop.import1.xml                | 2 +-
 man/org.freedesktop.locale1.xml                | 2 +-
 man/org.freedesktop.login1.xml                 | 2 +-
 man/org.freedesktop.machine1.xml               | 2 +-
 man/org.freedesktop.network1.xml               | 2 +-
 man/org.freedesktop.oom1.xml                   | 2 +-
 man/org.freedesktop.portable1.xml              | 2 +-
 man/org.freedesktop.resolve1.xml               | 2 +-
 man/org.freedesktop.systemd1.xml               | 2 +-
 man/org.freedesktop.timedate1.xml              | 2 +-
 man/os-release.xml                             | 2 +-
 man/pam_systemd.xml                            | 2 +-
 man/pam_systemd_home.xml                       | 2 +-
 man/pam_systemd_loadkey.xml                    | 2 +-
 man/portablectl.xml                            | 2 +-
 man/poweroff.xml                               | 2 +-
 man/pstore.conf.xml                            | 2 +-
 man/repart.d.xml                               | 2 +-
 man/resolvectl.xml                             | 2 +-
 man/resolved.conf.xml                          | 2 +-
 man/runlevel.xml                               | 2 +-
 man/sd-bus-errors.xml                          | 2 +-
 man/sd-bus.xml                                 | 2 +-
 man/sd-daemon.xml                              | 2 +-
 man/sd-device.xml                              | 2 +-
 man/sd-event.xml                               | 2 +-
 man/sd-hwdb.xml                                | 2 +-
 man/sd-id128.xml                               | 2 +-
 man/sd-journal.xml                             | 2 +-
 man/sd-login.xml                               | 2 +-
 man/sd_booted.xml                              | 2 +-
 man/sd_bus_add_match.xml                       | 2 +-
 man/sd_bus_add_node_enumerator.xml             | 2 +-
 man/sd_bus_add_object.xml                      | 2 +-
 man/sd_bus_add_object_manager.xml              | 2 +-
 man/sd_bus_attach_event.xml                    | 2 +-
 man/sd_bus_call.xml                            | 2 +-
 man/sd_bus_call_method.xml                     | 2 +-
 man/sd_bus_can_send.xml                        | 2 +-
 man/sd_bus_close.xml                           | 2 +-
 man/sd_bus_creds_get_pid.xml                   | 2 +-
 man/sd_bus_creds_new_from_pid.xml              | 2 +-
 man/sd_bus_default.xml                         | 2 +-
 man/sd_bus_emit_signal.xml                     | 2 +-
 man/sd_bus_enqueue_for_read.xml                | 2 +-
 man/sd_bus_error.xml                           | 2 +-
 man/sd_bus_error_add_map.xml                   | 2 +-
 man/sd_bus_get_current_handler.xml             | 2 +-
 man/sd_bus_get_fd.xml                          | 2 +-
 man/sd_bus_get_n_queued_read.xml               | 2 +-
 man/sd_bus_get_name_creds.xml                  | 2 +-
 man/sd_bus_get_name_machine_id.xml             | 2 +-
 man/sd_bus_interface_name_is_valid.xml         | 2 +-
 man/sd_bus_is_open.xml                         | 2 +-
 man/sd_bus_list_names.xml                      | 2 +-
 man/sd_bus_message_append.xml                  | 2 +-
 man/sd_bus_message_append_array.xml            | 2 +-
 man/sd_bus_message_append_basic.xml            | 2 +-
 man/sd_bus_message_append_string_memfd.xml     | 2 +-
 man/sd_bus_message_append_strv.xml             | 2 +-
 man/sd_bus_message_at_end.xml                  | 2 +-
 man/sd_bus_message_copy.xml                    | 2 +-
 man/sd_bus_message_dump.xml                    | 2 +-
 man/sd_bus_message_get_cookie.xml              | 2 +-
 man/sd_bus_message_get_monotonic_usec.xml      | 2 +-
 man/sd_bus_message_get_signature.xml           | 2 +-
 man/sd_bus_message_get_type.xml                | 2 +-
 man/sd_bus_message_new.xml                     | 2 +-
 man/sd_bus_message_new_method_call.xml         | 2 +-
 man/sd_bus_message_new_method_error.xml        | 2 +-
 man/sd_bus_message_new_signal.xml              | 2 +-
 man/sd_bus_message_open_container.xml          | 2 +-
 man/sd_bus_message_read.xml                    | 2 +-
 man/sd_bus_message_read_array.xml              | 2 +-
 man/sd_bus_message_read_basic.xml              | 2 +-
 man/sd_bus_message_read_strv.xml               | 2 +-
 man/sd_bus_message_rewind.xml                  | 2 +-
 man/sd_bus_message_seal.xml                    | 2 +-
 man/sd_bus_message_sensitive.xml               | 2 +-
 man/sd_bus_message_set_expect_reply.xml        | 2 +-
 man/sd_bus_message_skip.xml                    | 2 +-
 man/sd_bus_message_verify_type.xml             | 2 +-
 man/sd_bus_negotiate_fds.xml                   | 2 +-
 man/sd_bus_new.xml                             | 2 +-
 man/sd_bus_path_encode.xml                     | 2 +-
 man/sd_bus_process.xml                         | 2 +-
 man/sd_bus_query_sender_creds.xml              | 2 +-
 man/sd_bus_reply_method_error.xml              | 2 +-
 man/sd_bus_reply_method_return.xml             | 2 +-
 man/sd_bus_request_name.xml                    | 2 +-
 man/sd_bus_send.xml                            | 2 +-
 man/sd_bus_set_address.xml                     | 2 +-
 man/sd_bus_set_close_on_exit.xml               | 2 +-
 man/sd_bus_set_connected_signal.xml            | 2 +-
 man/sd_bus_set_description.xml                 | 2 +-
 man/sd_bus_set_exit_on_disconnect.xml          | 2 +-
 man/sd_bus_set_fd.xml                          | 2 +-
 man/sd_bus_set_method_call_timeout.xml         | 2 +-
 man/sd_bus_set_property.xml                    | 2 +-
 man/sd_bus_set_sender.xml                      | 2 +-
 man/sd_bus_set_server.xml                      | 2 +-
 man/sd_bus_set_watch_bind.xml                  | 2 +-
 man/sd_bus_slot_get_bus.xml                    | 2 +-
 man/sd_bus_slot_ref.xml                        | 2 +-
 man/sd_bus_slot_set_description.xml            | 2 +-
 man/sd_bus_slot_set_destroy_callback.xml       | 2 +-
 man/sd_bus_slot_set_floating.xml               | 2 +-
 man/sd_bus_slot_set_userdata.xml               | 2 +-
 man/sd_bus_start.xml                           | 2 +-
 man/sd_bus_track_add_name.xml                  | 2 +-
 man/sd_bus_track_new.xml                       | 2 +-
 man/sd_bus_wait.xml                            | 2 +-
 man/sd_device_get_syspath.xml                  | 2 +-
 man/sd_device_ref.xml                          | 2 +-
 man/sd_event_add_child.xml                     | 2 +-
 man/sd_event_add_defer.xml                     | 2 +-
 man/sd_event_add_inotify.xml                   | 2 +-
 man/sd_event_add_io.xml                        | 2 +-
 man/sd_event_add_memory_pressure.xml           | 2 +-
 man/sd_event_add_signal.xml                    | 2 +-
 man/sd_event_add_time.xml                      | 2 +-
 man/sd_event_exit.xml                          | 2 +-
 man/sd_event_get_fd.xml                        | 2 +-
 man/sd_event_new.xml                           | 2 +-
 man/sd_event_now.xml                           | 2 +-
 man/sd_event_run.xml                           | 2 +-
 man/sd_event_set_signal_exit.xml               | 2 +-
 man/sd_event_set_watchdog.xml                  | 2 +-
 man/sd_event_source_get_event.xml              | 2 +-
 man/sd_event_source_get_pending.xml            | 2 +-
 man/sd_event_source_set_description.xml        | 2 +-
 man/sd_event_source_set_destroy_callback.xml   | 2 +-
 man/sd_event_source_set_enabled.xml            | 2 +-
 man/sd_event_source_set_exit_on_failure.xml    | 2 +-
 man/sd_event_source_set_floating.xml           | 2 +-
 man/sd_event_source_set_prepare.xml            | 2 +-
 man/sd_event_source_set_priority.xml           | 2 +-
 man/sd_event_source_set_ratelimit.xml          | 2 +-
 man/sd_event_source_set_userdata.xml           | 2 +-
 man/sd_event_source_unref.xml                  | 2 +-
 man/sd_event_wait.xml                          | 2 +-
 man/sd_get_seats.xml                           | 2 +-
 man/sd_hwdb_get.xml                            | 2 +-
 man/sd_hwdb_new.xml                            | 2 +-
 man/sd_id128_get_machine.xml                   | 2 +-
 man/sd_id128_randomize.xml                     | 2 +-
 man/sd_id128_to_string.xml                     | 2 +-
 man/sd_is_fifo.xml                             | 2 +-
 man/sd_journal_add_match.xml                   | 2 +-
 man/sd_journal_enumerate_fields.xml            | 2 +-
 man/sd_journal_get_catalog.xml                 | 2 +-
 man/sd_journal_get_cursor.xml                  | 2 +-
 man/sd_journal_get_cutoff_realtime_usec.xml    | 2 +-
 man/sd_journal_get_data.xml                    | 2 +-
 man/sd_journal_get_fd.xml                      | 2 +-
 man/sd_journal_get_realtime_usec.xml           | 2 +-
 man/sd_journal_get_seqnum.xml                  | 2 +-
 man/sd_journal_get_usage.xml                   | 2 +-
 man/sd_journal_has_runtime_files.xml           | 2 +-
 man/sd_journal_next.xml                        | 2 +-
 man/sd_journal_open.xml                        | 2 +-
 man/sd_journal_print.xml                       | 2 +-
 man/sd_journal_query_unique.xml                | 2 +-
 man/sd_journal_seek_head.xml                   | 2 +-
 man/sd_journal_stream_fd.xml                   | 2 +-
 man/sd_listen_fds.xml                          | 2 +-
 man/sd_login_monitor_new.xml                   | 2 +-
 man/sd_machine_get_class.xml                   | 2 +-
 man/sd_notify.xml                              | 2 +-
 man/sd_path_lookup.xml                         | 2 +-
 man/sd_pid_get_owner_uid.xml                   | 2 +-
 man/sd_seat_get_active.xml                     | 2 +-
 man/sd_session_is_active.xml                   | 2 +-
 man/sd_uid_get_state.xml                       | 2 +-
 man/sd_watchdog_enabled.xml                    | 2 +-
 man/shutdown.xml                               | 2 +-
 man/smbios-type-11.xml                         | 2 +-
 man/sysctl.d.xml                               | 2 +-
 man/systemctl.xml                              | 2 +-
 man/systemd-ac-power.xml                       | 2 +-
 man/systemd-analyze.xml                        | 2 +-
 man/systemd-ask-password-console.service.xml   | 2 +-
 man/systemd-ask-password.xml                   | 2 +-
 man/systemd-backlight@.service.xml             | 2 +-
 man/systemd-battery-check.service.xml          | 2 +-
 man/systemd-binfmt.service.xml                 | 2 +-
 man/systemd-bless-boot-generator.xml           | 2 +-
 man/systemd-bless-boot.service.xml             | 2 +-
 man/systemd-boot-check-no-failures.service.xml | 2 +-
 man/systemd-boot-random-seed.service.xml       | 2 +-
 man/systemd-boot.xml                           | 2 +-
 man/systemd-bsod.service.xml                   | 2 +-
 man/systemd-cat.xml                            | 2 +-
 man/systemd-cgls.xml                           | 2 +-
 man/systemd-cgtop.xml                          | 2 +-
 man/systemd-coredump.xml                       | 2 +-
 man/systemd-creds.xml                          | 2 +-
 man/systemd-cryptenroll.xml                    | 2 +-
 man/systemd-cryptsetup-generator.xml           | 2 +-
 man/systemd-cryptsetup.xml                     | 2 +-
 man/systemd-debug-generator.xml                | 2 +-
 man/systemd-delta.xml                          | 2 +-
 man/systemd-detect-virt.xml                    | 2 +-
 man/systemd-dissect.xml                        | 2 +-
 man/systemd-environment-d-generator.xml        | 2 +-
 man/systemd-escape.xml                         | 2 +-
 man/systemd-firstboot.xml                      | 2 +-
 man/systemd-fsck@.service.xml                  | 2 +-
 man/systemd-fstab-generator.xml                | 2 +-
 man/systemd-getty-generator.xml                | 2 +-
 man/systemd-gpt-auto-generator.xml             | 2 +-
 man/systemd-hibernate-resume-generator.xml     | 2 +-
 man/systemd-hibernate-resume.service.xml       | 2 +-
 man/systemd-homed.service.xml                  | 2 +-
 man/systemd-hostnamed.service.xml              | 2 +-
 man/systemd-hwdb.xml                           | 2 +-
 man/systemd-id128.xml                          | 2 +-
 man/systemd-importd.service.xml                | 2 +-
 man/systemd-inhibit.xml                        | 2 +-
 man/systemd-initctl.service.xml                | 2 +-
 man/systemd-integritysetup-generator.xml       | 2 +-
 man/systemd-integritysetup@.service.xml        | 2 +-
 man/systemd-journal-gatewayd.service.xml       | 2 +-
 man/systemd-journal-remote.service.xml         | 2 +-
 man/systemd-journal-upload.service.xml         | 2 +-
 man/systemd-journald.service.xml               | 2 +-
 man/systemd-localed.service.xml                | 2 +-
 man/systemd-logind.service.xml                 | 2 +-
 man/systemd-machine-id-commit.service.xml      | 2 +-
 man/systemd-machine-id-setup.xml               | 2 +-
 man/systemd-machined.service.xml               | 2 +-
 man/systemd-makefs@.service.xml                | 2 +-
 man/systemd-measure.xml                        | 2 +-
 man/systemd-modules-load.service.xml           | 2 +-
 man/systemd-mount.xml                          | 2 +-
 man/systemd-network-generator.service.xml      | 2 +-
 man/systemd-networkd-wait-online.service.xml   | 2 +-
 man/systemd-networkd.service.xml               | 2 +-
 man/systemd-notify.xml                         | 2 +-
 man/systemd-nspawn.xml                         | 2 +-
 man/systemd-oomd.service.xml                   | 2 +-
 man/systemd-path.xml                           | 2 +-
 man/systemd-pcrlock.xml                        | 2 +-
 man/systemd-pcrphase.service.xml               | 2 +-
 man/systemd-portabled.service.xml              | 2 +-
 man/systemd-poweroff.service.xml               | 2 +-
 man/systemd-pstore.service.xml                 | 2 +-
 man/systemd-quotacheck.service.xml             | 2 +-
 man/systemd-random-seed.service.xml            | 2 +-
 man/systemd-rc-local-generator.xml             | 2 +-
 man/systemd-remount-fs.service.xml             | 2 +-
 man/systemd-repart.xml                         | 2 +-
 man/systemd-resolved.service.xml               | 2 +-
 man/systemd-rfkill.service.xml                 | 2 +-
 man/systemd-run-generator.xml                  | 2 +-
 man/systemd-run.xml                            | 2 +-
 man/systemd-sleep.conf.xml                     | 2 +-
 man/systemd-socket-activate.xml                | 2 +-
 man/systemd-socket-proxyd.xml                  | 2 +-
 man/systemd-soft-reboot.service.xml            | 2 +-
 man/systemd-stdio-bridge.xml                   | 2 +-
 man/systemd-storagetm.service.xml              | 2 +-
 man/systemd-stub.xml                           | 2 +-
 man/systemd-suspend.service.xml                | 2 +-
 man/systemd-sysctl.service.xml                 | 2 +-
 man/systemd-sysext.xml                         | 2 +-
 man/systemd-system-update-generator.xml        | 2 +-
 man/systemd-system.conf.xml                    | 2 +-
 man/systemd-sysupdate.xml                      | 2 +-
 man/systemd-sysusers.xml                       | 2 +-
 man/systemd-sysv-generator.xml                 | 2 +-
 man/systemd-time-wait-sync.service.xml         | 2 +-
 man/systemd-timedated.service.xml              | 2 +-
 man/systemd-timesyncd.service.xml              | 2 +-
 man/systemd-tmpfiles.xml                       | 2 +-
 man/systemd-tpm2-setup.service.xml             | 2 +-
 man/systemd-tty-ask-password-agent.xml         | 2 +-
 man/systemd-udev-settle.service.xml            | 2 +-
 man/systemd-udevd.service.xml                  | 2 +-
 man/systemd-update-done.service.xml            | 2 +-
 man/systemd-update-utmp.service.xml            | 2 +-
 man/systemd-user-sessions.service.xml          | 2 +-
 man/systemd-userdbd.service.xml                | 2 +-
 man/systemd-vconsole-setup.service.xml         | 2 +-
 man/systemd-veritysetup-generator.xml          | 2 +-
 man/systemd-veritysetup@.service.xml           | 2 +-
 man/systemd-vmspawn.xml                        | 2 +-
 man/systemd-volatile-root.service.xml          | 2 +-
 man/systemd-xdg-autostart-generator.xml        | 2 +-
 man/systemd.automount.xml                      | 2 +-
 man/systemd.device.xml                         | 2 +-
 man/systemd.dnssd.xml                          | 2 +-
 man/systemd.environment-generator.xml          | 2 +-
 man/systemd.exec.xml                           | 2 +-
 man/systemd.generator.xml                      | 2 +-
 man/systemd.image-policy.xml                   | 2 +-
 man/systemd.journal-fields.xml                 | 2 +-
 man/systemd.kill.xml                           | 2 +-
 man/systemd.link.xml                           | 2 +-
 man/systemd.mount.xml                          | 2 +-
 man/systemd.net-naming-scheme.xml              | 2 +-
 man/systemd.netdev.xml                         | 2 +-
 man/systemd.network.xml                        | 2 +-
 man/systemd.nspawn.xml                         | 2 +-
 man/systemd.offline-updates.xml                | 2 +-
 man/systemd.path.xml                           | 2 +-
 man/systemd.pcrlock.xml                        | 2 +-
 man/systemd.preset.xml                         | 2 +-
 man/systemd.resource-control.xml               | 2 +-
 man/systemd.scope.xml                          | 2 +-
 man/systemd.service.xml                        | 2 +-
 man/systemd.slice.xml                          | 2 +-
 man/systemd.socket.xml                         | 2 +-
 man/systemd.special.xml                        | 2 +-
 man/systemd.swap.xml                           | 2 +-
 man/systemd.syntax.xml                         | 2 +-
 man/systemd.system-credentials.xml             | 2 +-
 man/systemd.target.xml                         | 2 +-
 man/systemd.time.xml                           | 2 +-
 man/systemd.timer.xml                          | 2 +-
 man/systemd.unit.xml                           | 2 +-
 man/systemd.xml                                | 2 +-
 man/sysupdate.d.xml                            | 2 +-
 man/sysusers.d.xml                             | 2 +-
 man/telinit.xml                                | 2 +-
 man/timedatectl.xml                            | 2 +-
 man/timesyncd.conf.xml                         | 2 +-
 man/tmpfiles.d.xml                             | 2 +-
 man/udev.conf.xml                              | 2 +-
 man/udev.xml                                   | 2 +-
 man/udev_device_get_syspath.xml                | 2 +-
 man/udev_device_has_tag.xml                    | 2 +-
 man/udev_device_new_from_syspath.xml           | 2 +-
 man/udev_enumerate_add_match_subsystem.xml     | 2 +-
 man/udev_enumerate_new.xml                     | 2 +-
 man/udev_enumerate_scan_devices.xml            | 2 +-
 man/udev_list_entry.xml                        | 2 +-
 man/udev_monitor_filter_update.xml             | 2 +-
 man/udev_monitor_new_from_netlink.xml          | 2 +-
 man/udev_monitor_receive_device.xml            | 2 +-
 man/udev_new.xml                               | 2 +-
 man/udevadm.xml                                | 2 +-
 man/uid0.xml                                   | 2 +-
 man/ukify.xml                                  | 2 +-
 man/user@.service.xml                          | 2 +-
 man/userdbctl.xml                              | 2 +-
 man/varlinkctl.xml                             | 2 +-
 man/vconsole.conf.xml                          | 2 +-
 man/veritytab.xml                              | 2 +-
 396 files changed, 396 insertions(+), 396 deletions(-)

diff --git a/man/binfmt.d.xml b/man/binfmt.d.xml
index 00f956010bd..32f16e6ad85 100644
--- a/man/binfmt.d.xml
+++ b/man/binfmt.d.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="binfmt.d" conditional='ENABLE_BINFMT'
     xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/bootctl.xml b/man/bootctl.xml
index a5332098a20..eae2213536f 100644
--- a/man/bootctl.xml
+++ b/man/bootctl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="bootctl" conditional='ENABLE_BOOTLOADER'
diff --git a/man/bootup.xml b/man/bootup.xml
index 644ba3a9cfa..b9a740a49ab 100644
--- a/man/bootup.xml
+++ b/man/bootup.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="bootup">
diff --git a/man/busctl.xml b/man/busctl.xml
index 612e9733fec..74f5cf3edbd 100644
--- a/man/busctl.xml
+++ b/man/busctl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="busctl"
diff --git a/man/coredump.conf.xml b/man/coredump.conf.xml
index 366988f3af3..b08d732adb5 100644
--- a/man/coredump.conf.xml
+++ b/man/coredump.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="coredump.conf" conditional="ENABLE_COREDUMP"
diff --git a/man/coredumpctl.xml b/man/coredumpctl.xml
index e1df2e58521..9e356a0da6b 100644
--- a/man/coredumpctl.xml
+++ b/man/coredumpctl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="coredumpctl" conditional='ENABLE_COREDUMP'
diff --git a/man/crypttab.xml b/man/crypttab.xml
index 175e169fbc7..8994e4f0d22 100644
--- a/man/crypttab.xml
+++ b/man/crypttab.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
 
diff --git a/man/daemon.xml b/man/daemon.xml
index 46658791f7e..e26be0d2eff 100644
--- a/man/daemon.xml
+++ b/man/daemon.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="daemon">
diff --git a/man/dnssec-trust-anchors.d.xml b/man/dnssec-trust-anchors.d.xml
index 1d5a9099051..c760b75f4d3 100644
--- a/man/dnssec-trust-anchors.d.xml
+++ b/man/dnssec-trust-anchors.d.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="dnssec-trust-anchors.d" conditional='ENABLE_RESOLVE'
diff --git a/man/environment.d.xml b/man/environment.d.xml
index d6fa366d14b..7ef4b4d2ed6 100644
--- a/man/environment.d.xml
+++ b/man/environment.d.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
 
diff --git a/man/file-hierarchy.xml b/man/file-hierarchy.xml
index 03a20855246..02841a7cc22 100644
--- a/man/file-hierarchy.xml
+++ b/man/file-hierarchy.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="file-hierarchy" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/homectl.xml b/man/homectl.xml
index 4f19f8cde7f..65f6698ef49 100644
--- a/man/homectl.xml
+++ b/man/homectl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="homectl" conditional='ENABLE_HOMED'
diff --git a/man/homed.conf.xml b/man/homed.conf.xml
index d8f34786f77..a6c070cb532 100644
--- a/man/homed.conf.xml
+++ b/man/homed.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="homed.conf" conditional='ENABLE_HOMED'
diff --git a/man/hostname.xml b/man/hostname.xml
index d3e8e91c4f9..746de21cd12 100644
--- a/man/hostname.xml
+++ b/man/hostname.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/hostnamectl.xml b/man/hostnamectl.xml
index 9f7f92cea73..32390490950 100644
--- a/man/hostnamectl.xml
+++ b/man/hostnamectl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/hwdb.xml b/man/hwdb.xml
index 4efa3751654..382255267d7 100644
--- a/man/hwdb.xml
+++ b/man/hwdb.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="hwdb" conditional="ENABLE_HWDB">
diff --git a/man/integritytab.xml b/man/integritytab.xml
index ebffeeb25e7..77ff4beb88e 100644
--- a/man/integritytab.xml
+++ b/man/integritytab.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
 
diff --git a/man/iocost.conf.xml b/man/iocost.conf.xml
index 285515d1720..88e4edd2c12 100644
--- a/man/iocost.conf.xml
+++ b/man/iocost.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="iocost.conf" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/journal-remote.conf.xml b/man/journal-remote.conf.xml
index a00e93390c2..1cf18c3cd82 100644
--- a/man/journal-remote.conf.xml
+++ b/man/journal-remote.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
diff --git a/man/journal-upload.conf.xml b/man/journal-upload.conf.xml
index b326a6d7a04..66ea0dca6c8 100644
--- a/man/journal-upload.conf.xml
+++ b/man/journal-upload.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="journal-upload.conf" conditional='HAVE_MICROHTTPD'
diff --git a/man/journalctl.xml b/man/journalctl.xml
index c6350f9c0bf..ac900ff1a66 100644
--- a/man/journalctl.xml
+++ b/man/journalctl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="journalctl"
diff --git a/man/journald.conf.xml b/man/journald.conf.xml
index 01072083c20..5ecf0045879 100644
--- a/man/journald.conf.xml
+++ b/man/journald.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="journald.conf"
diff --git a/man/kernel-command-line.xml b/man/kernel-command-line.xml
index ddc8ada2fdb..25ad770dcd0 100644
--- a/man/kernel-command-line.xml
+++ b/man/kernel-command-line.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="kernel-command-line" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/kernel-install.xml b/man/kernel-install.xml
index da5a29edd23..519829579fa 100644
--- a/man/kernel-install.xml
+++ b/man/kernel-install.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="kernel-install" conditional='ENABLE_KERNEL_INSTALL'
diff --git a/man/libsystemd.xml b/man/libsystemd.xml
index 4ba40b1ee51..34bd62ed52c 100644
--- a/man/libsystemd.xml
+++ b/man/libsystemd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="libsystemd"
diff --git a/man/libudev.xml b/man/libudev.xml
index 2bedda9b642..3683b8ba38e 100644
--- a/man/libudev.xml
+++ b/man/libudev.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/loader.conf.xml b/man/loader.conf.xml
index 0bee697b6ca..068aa3b54a6 100644
--- a/man/loader.conf.xml
+++ b/man/loader.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="loader.conf" conditional='ENABLE_BOOTLOADER'
diff --git a/man/locale.conf.xml b/man/locale.conf.xml
index 01de6808114..8dc9cb4098a 100644
--- a/man/locale.conf.xml
+++ b/man/locale.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="locale.conf">
diff --git a/man/localectl.xml b/man/localectl.xml
index d123978778d..cfcf408a3b1 100644
--- a/man/localectl.xml
+++ b/man/localectl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="localectl" conditional='ENABLE_LOCALED'
diff --git a/man/localtime.xml b/man/localtime.xml
index 96338e6b03f..3a13e04a27f 100644
--- a/man/localtime.xml
+++ b/man/localtime.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="localtime">
diff --git a/man/loginctl.xml b/man/loginctl.xml
index a455a8cee6a..c8abf0972a6 100644
--- a/man/loginctl.xml
+++ b/man/loginctl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="loginctl" conditional='ENABLE_LOGIND'
diff --git a/man/logind.conf.xml b/man/logind.conf.xml
index 0d11fc76345..ff19ba91fa0 100644
--- a/man/logind.conf.xml
+++ b/man/logind.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/machine-id.xml b/man/machine-id.xml
index 2bedc5267ca..833b4f08418 100644
--- a/man/machine-id.xml
+++ b/man/machine-id.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="machine-id">
diff --git a/man/machine-info.xml b/man/machine-info.xml
index f97fba56880..bdd213cb19a 100644
--- a/man/machine-info.xml
+++ b/man/machine-info.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="machine-info" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/machinectl.xml b/man/machinectl.xml
index 95ee39c6bf3..c1c7ab3d458 100644
--- a/man/machinectl.xml
+++ b/man/machinectl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/modules-load.d.xml b/man/modules-load.d.xml
index 086010ebe7b..c1f93413a5c 100644
--- a/man/modules-load.d.xml
+++ b/man/modules-load.d.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="modules-load.d" conditional='HAVE_KMOD'
     xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/networkctl.xml b/man/networkctl.xml
index 0ca29d54403..79a9fc13454 100644
--- a/man/networkctl.xml
+++ b/man/networkctl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="networkctl" conditional='ENABLE_NETWORKD'
diff --git a/man/networkd.conf.xml b/man/networkd.conf.xml
index ff9fbe50392..ab1f7becbed 100644
--- a/man/networkd.conf.xml
+++ b/man/networkd.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
diff --git a/man/nss-myhostname.xml b/man/nss-myhostname.xml
index 37c244819d3..e0cfffe023e 100644
--- a/man/nss-myhostname.xml
+++ b/man/nss-myhostname.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="nss-myhostname" conditional='ENABLE_NSS_MYHOSTNAME'>
diff --git a/man/nss-mymachines.xml b/man/nss-mymachines.xml
index de233583b12..8ca0d62d2a9 100644
--- a/man/nss-mymachines.xml
+++ b/man/nss-mymachines.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="nss-mymachines" conditional='ENABLE_NSS_MYMACHINES'>
diff --git a/man/nss-resolve.xml b/man/nss-resolve.xml
index d858b6f84d0..0922eef3af2 100644
--- a/man/nss-resolve.xml
+++ b/man/nss-resolve.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="nss-resolve" conditional='ENABLE_NSS_RESOLVE'
diff --git a/man/nss-systemd.xml b/man/nss-systemd.xml
index 3b837d96e50..4233bf6a437 100644
--- a/man/nss-systemd.xml
+++ b/man/nss-systemd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="nss-systemd" conditional='ENABLE_NSS_SYSTEMD'>
diff --git a/man/oomctl.xml b/man/oomctl.xml
index ce756929315..02289f67418 100644
--- a/man/oomctl.xml
+++ b/man/oomctl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="oomctl" conditional='ENABLE_OOMD'
diff --git a/man/oomd.conf.xml b/man/oomd.conf.xml
index 93901dda3f6..1c25996498f 100644
--- a/man/oomd.conf.xml
+++ b/man/oomd.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="oomd.conf" conditional='ENABLE_OOMD'
diff --git a/man/org.freedesktop.LogControl1.xml b/man/org.freedesktop.LogControl1.xml
index 4d8977134b0..5738a3dda67 100644
--- a/man/org.freedesktop.LogControl1.xml
+++ b/man/org.freedesktop.LogControl1.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="org.freedesktop.LogControl1"
diff --git a/man/org.freedesktop.home1.xml b/man/org.freedesktop.home1.xml
index 38f999156ef..014f60ed448 100644
--- a/man/org.freedesktop.home1.xml
+++ b/man/org.freedesktop.home1.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="org.freedesktop.home1" conditional='ENABLE_HOMED'
diff --git a/man/org.freedesktop.hostname1.xml b/man/org.freedesktop.hostname1.xml
index fa9fd62b8aa..577e64dcd7e 100644
--- a/man/org.freedesktop.hostname1.xml
+++ b/man/org.freedesktop.hostname1.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/org.freedesktop.import1.xml b/man/org.freedesktop.import1.xml
index 3ef62642810..d981bc0d4b6 100644
--- a/man/org.freedesktop.import1.xml
+++ b/man/org.freedesktop.import1.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="org.freedesktop.import1" conditional='ENABLE_IMPORTD'
diff --git a/man/org.freedesktop.locale1.xml b/man/org.freedesktop.locale1.xml
index d5c93af7497..6e0d118e255 100644
--- a/man/org.freedesktop.locale1.xml
+++ b/man/org.freedesktop.locale1.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="org.freedesktop.locale1" conditional='ENABLE_LOCALED'
diff --git a/man/org.freedesktop.login1.xml b/man/org.freedesktop.login1.xml
index 12d8695c27d..581a261c798 100644
--- a/man/org.freedesktop.login1.xml
+++ b/man/org.freedesktop.login1.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="org.freedesktop.login1" conditional='ENABLE_LOGIND'
diff --git a/man/org.freedesktop.machine1.xml b/man/org.freedesktop.machine1.xml
index 1af77e00350..a748b7652d6 100644
--- a/man/org.freedesktop.machine1.xml
+++ b/man/org.freedesktop.machine1.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="org.freedesktop.machine1" conditional='ENABLE_MACHINED'
diff --git a/man/org.freedesktop.network1.xml b/man/org.freedesktop.network1.xml
index 02013c57bbd..c6cadee177f 100644
--- a/man/org.freedesktop.network1.xml
+++ b/man/org.freedesktop.network1.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/org.freedesktop.oom1.xml b/man/org.freedesktop.oom1.xml
index 8339e63873e..d7b2b9c5d85 100644
--- a/man/org.freedesktop.oom1.xml
+++ b/man/org.freedesktop.oom1.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="org.freedesktop.oom1" conditional='ENABLE_OOMD'
diff --git a/man/org.freedesktop.portable1.xml b/man/org.freedesktop.portable1.xml
index 118d86d727a..f3c5597442a 100644
--- a/man/org.freedesktop.portable1.xml
+++ b/man/org.freedesktop.portable1.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="org.freedesktop.portable1" conditional='ENABLE_PORTABLED'
diff --git a/man/org.freedesktop.resolve1.xml b/man/org.freedesktop.resolve1.xml
index f9cba4f612d..aa24d351236 100644
--- a/man/org.freedesktop.resolve1.xml
+++ b/man/org.freedesktop.resolve1.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/org.freedesktop.systemd1.xml b/man/org.freedesktop.systemd1.xml
index ced9bea7db0..f6d327dfd3e 100644
--- a/man/org.freedesktop.systemd1.xml
+++ b/man/org.freedesktop.systemd1.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="org.freedesktop.systemd1" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/org.freedesktop.timedate1.xml b/man/org.freedesktop.timedate1.xml
index 53dc175b654..1dfb630545c 100644
--- a/man/org.freedesktop.timedate1.xml
+++ b/man/org.freedesktop.timedate1.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" >
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" >
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="org.freedesktop.timedate1" conditional='ENABLE_TIMEDATED'
diff --git a/man/os-release.xml b/man/os-release.xml
index c5dfdd8cba8..7ea684b57f8 100644
--- a/man/os-release.xml
+++ b/man/os-release.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="os-release" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/pam_systemd.xml b/man/pam_systemd.xml
index e91eaee3f9c..c9a3ccbb5f2 100644
--- a/man/pam_systemd.xml
+++ b/man/pam_systemd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="pam_systemd" conditional='HAVE_PAM' xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/pam_systemd_home.xml b/man/pam_systemd_home.xml
index 440ecc90c05..10ac7d9838e 100644
--- a/man/pam_systemd_home.xml
+++ b/man/pam_systemd_home.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="pam_systemd_home" conditional='ENABLE_PAM_HOME'
diff --git a/man/pam_systemd_loadkey.xml b/man/pam_systemd_loadkey.xml
index afb41f318d1..becb32adcd0 100644
--- a/man/pam_systemd_loadkey.xml
+++ b/man/pam_systemd_loadkey.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="pam_systemd_loadkey" conditional='HAVE_PAM' xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/portablectl.xml b/man/portablectl.xml
index 6352a8259b4..d0d00cf5d22 100644
--- a/man/portablectl.xml
+++ b/man/portablectl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="portablectl" conditional='ENABLE_PORTABLED'
diff --git a/man/poweroff.xml b/man/poweroff.xml
index cb3b4561af1..501db12a58b 100644
--- a/man/poweroff.xml
+++ b/man/poweroff.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="poweroff"
diff --git a/man/pstore.conf.xml b/man/pstore.conf.xml
index f54cef9e575..3216a4c27bb 100644
--- a/man/pstore.conf.xml
+++ b/man/pstore.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="pstore.conf" conditional="ENABLE_PSTORE"
diff --git a/man/repart.d.xml b/man/repart.d.xml
index 38f49d65653..f297933ccec 100644
--- a/man/repart.d.xml
+++ b/man/repart.d.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="repart.d" conditional='ENABLE_REPART'
diff --git a/man/resolvectl.xml b/man/resolvectl.xml
index 6fc284cc72b..3babb8afc21 100644
--- a/man/resolvectl.xml
+++ b/man/resolvectl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="resolvectl" conditional='ENABLE_RESOLVE'
diff --git a/man/resolved.conf.xml b/man/resolved.conf.xml
index 0b5c80a75f1..24cf3e427cb 100644
--- a/man/resolved.conf.xml
+++ b/man/resolved.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/runlevel.xml b/man/runlevel.xml
index 0ef6577aded..7b7e24ba6c3 100644
--- a/man/runlevel.xml
+++ b/man/runlevel.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="runlevel" conditional='HAVE_SYSV_COMPAT'
diff --git a/man/sd-bus-errors.xml b/man/sd-bus-errors.xml
index bdc3a81d663..b9919b13f65 100644
--- a/man/sd-bus-errors.xml
+++ b/man/sd-bus-errors.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd-bus-errors"
diff --git a/man/sd-bus.xml b/man/sd-bus.xml
index 38f0fe94784..26392d7a311 100644
--- a/man/sd-bus.xml
+++ b/man/sd-bus.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd-bus" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd-daemon.xml b/man/sd-daemon.xml
index 2d2fb023cf0..ed7905afe58 100644
--- a/man/sd-daemon.xml
+++ b/man/sd-daemon.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd-daemon"
diff --git a/man/sd-device.xml b/man/sd-device.xml
index f6da516d450..c8874828af2 100644
--- a/man/sd-device.xml
+++ b/man/sd-device.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd-device" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd-event.xml b/man/sd-event.xml
index 93f32eba458..46b50ea401b 100644
--- a/man/sd-event.xml
+++ b/man/sd-event.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd-event" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd-hwdb.xml b/man/sd-hwdb.xml
index 80a923d570a..eeaa407fc1c 100644
--- a/man/sd-hwdb.xml
+++ b/man/sd-hwdb.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd-hwdb" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd-id128.xml b/man/sd-id128.xml
index 4ef3d393beb..7a81fae3b5f 100644
--- a/man/sd-id128.xml
+++ b/man/sd-id128.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd-id128"
diff --git a/man/sd-journal.xml b/man/sd-journal.xml
index c657a3696a5..d143cb4a0f7 100644
--- a/man/sd-journal.xml
+++ b/man/sd-journal.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd-journal"
diff --git a/man/sd-login.xml b/man/sd-login.xml
index c72aee16c97..9e06d013121 100644
--- a/man/sd-login.xml
+++ b/man/sd-login.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd-login" conditional='HAVE_PAM'
diff --git a/man/sd_booted.xml b/man/sd_booted.xml
index 0ecfb830063..8a132038b53 100644
--- a/man/sd_booted.xml
+++ b/man/sd_booted.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_booted"
diff --git a/man/sd_bus_add_match.xml b/man/sd_bus_add_match.xml
index 48d37cdcda6..527b2d9f543 100644
--- a/man/sd_bus_add_match.xml
+++ b/man/sd_bus_add_match.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
diff --git a/man/sd_bus_add_node_enumerator.xml b/man/sd_bus_add_node_enumerator.xml
index fb0a562f446..149bd21897a 100644
--- a/man/sd_bus_add_node_enumerator.xml
+++ b/man/sd_bus_add_node_enumerator.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_add_node_enumerator"
diff --git a/man/sd_bus_add_object.xml b/man/sd_bus_add_object.xml
index 7801f8825f2..94ad637cffa 100644
--- a/man/sd_bus_add_object.xml
+++ b/man/sd_bus_add_object.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_add_object"
diff --git a/man/sd_bus_add_object_manager.xml b/man/sd_bus_add_object_manager.xml
index b2327b39324..a636bde6c87 100644
--- a/man/sd_bus_add_object_manager.xml
+++ b/man/sd_bus_add_object_manager.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_add_object_manager"
diff --git a/man/sd_bus_attach_event.xml b/man/sd_bus_attach_event.xml
index 88a073839c9..993aa4350b7 100644
--- a/man/sd_bus_attach_event.xml
+++ b/man/sd_bus_attach_event.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_attach_event"
diff --git a/man/sd_bus_call.xml b/man/sd_bus_call.xml
index e9d5345ed32..4cfcf17277b 100644
--- a/man/sd_bus_call.xml
+++ b/man/sd_bus_call.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_call"
diff --git a/man/sd_bus_call_method.xml b/man/sd_bus_call_method.xml
index f799545014a..1bd09ce0c3a 100644
--- a/man/sd_bus_call_method.xml
+++ b/man/sd_bus_call_method.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_call_method"
diff --git a/man/sd_bus_can_send.xml b/man/sd_bus_can_send.xml
index 4b657715905..7819116a7db 100644
--- a/man/sd_bus_can_send.xml
+++ b/man/sd_bus_can_send.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_can_send"
diff --git a/man/sd_bus_close.xml b/man/sd_bus_close.xml
index 9df804ca995..89c3cdb43c9 100644
--- a/man/sd_bus_close.xml
+++ b/man/sd_bus_close.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_close"
diff --git a/man/sd_bus_creds_get_pid.xml b/man/sd_bus_creds_get_pid.xml
index dfac766f22c..62deb229ac8 100644
--- a/man/sd_bus_creds_get_pid.xml
+++ b/man/sd_bus_creds_get_pid.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_creds_get_pid" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_creds_new_from_pid.xml b/man/sd_bus_creds_new_from_pid.xml
index 57c0e43d228..ca9cab72926 100644
--- a/man/sd_bus_creds_new_from_pid.xml
+++ b/man/sd_bus_creds_new_from_pid.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_creds_new_from_pid" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_default.xml b/man/sd_bus_default.xml
index 7446f5a2768..e07ca3ee744 100644
--- a/man/sd_bus_default.xml
+++ b/man/sd_bus_default.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_default" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_emit_signal.xml b/man/sd_bus_emit_signal.xml
index 929bff4a852..7acd10baaf5 100644
--- a/man/sd_bus_emit_signal.xml
+++ b/man/sd_bus_emit_signal.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_emit_signal"
diff --git a/man/sd_bus_enqueue_for_read.xml b/man/sd_bus_enqueue_for_read.xml
index cff683031e8..acf1a432d32 100644
--- a/man/sd_bus_enqueue_for_read.xml
+++ b/man/sd_bus_enqueue_for_read.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_enqueue_for_read"
diff --git a/man/sd_bus_error.xml b/man/sd_bus_error.xml
index a369167574c..41fdab26345 100644
--- a/man/sd_bus_error.xml
+++ b/man/sd_bus_error.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_error" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_error_add_map.xml b/man/sd_bus_error_add_map.xml
index ba5c300ccb6..d91647f4845 100644
--- a/man/sd_bus_error_add_map.xml
+++ b/man/sd_bus_error_add_map.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_error_add_map"
diff --git a/man/sd_bus_get_current_handler.xml b/man/sd_bus_get_current_handler.xml
index dc1b046e09a..5ff2d2b5010 100644
--- a/man/sd_bus_get_current_handler.xml
+++ b/man/sd_bus_get_current_handler.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_get_current_handler" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_get_fd.xml b/man/sd_bus_get_fd.xml
index 342ecf9047e..a7bed31f244 100644
--- a/man/sd_bus_get_fd.xml
+++ b/man/sd_bus_get_fd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
diff --git a/man/sd_bus_get_n_queued_read.xml b/man/sd_bus_get_n_queued_read.xml
index 4c23b1f1c98..2401a1a3e67 100644
--- a/man/sd_bus_get_n_queued_read.xml
+++ b/man/sd_bus_get_n_queued_read.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_get_n_queued_read">
diff --git a/man/sd_bus_get_name_creds.xml b/man/sd_bus_get_name_creds.xml
index a41ecd6dc9e..d33cf622a5f 100644
--- a/man/sd_bus_get_name_creds.xml
+++ b/man/sd_bus_get_name_creds.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_get_name_creds" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_get_name_machine_id.xml b/man/sd_bus_get_name_machine_id.xml
index 4de902f458f..37ec15adff8 100644
--- a/man/sd_bus_get_name_machine_id.xml
+++ b/man/sd_bus_get_name_machine_id.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_get_name_machine_id" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_interface_name_is_valid.xml b/man/sd_bus_interface_name_is_valid.xml
index fd1774da7f4..c87c4a62d0d 100644
--- a/man/sd_bus_interface_name_is_valid.xml
+++ b/man/sd_bus_interface_name_is_valid.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_interface_name_is_valid" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_is_open.xml b/man/sd_bus_is_open.xml
index df0d905d703..1d0ce1d8771 100644
--- a/man/sd_bus_is_open.xml
+++ b/man/sd_bus_is_open.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_is_open"
diff --git a/man/sd_bus_list_names.xml b/man/sd_bus_list_names.xml
index 9281c28a8b5..c9103a331a1 100644
--- a/man/sd_bus_list_names.xml
+++ b/man/sd_bus_list_names.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_list_names"
diff --git a/man/sd_bus_message_append.xml b/man/sd_bus_message_append.xml
index a029edd1b89..64c52ffefe7 100644
--- a/man/sd_bus_message_append.xml
+++ b/man/sd_bus_message_append.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_append"
diff --git a/man/sd_bus_message_append_array.xml b/man/sd_bus_message_append_array.xml
index af0b9555b8a..6c4f05d9c78 100644
--- a/man/sd_bus_message_append_array.xml
+++ b/man/sd_bus_message_append_array.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_append_array"
diff --git a/man/sd_bus_message_append_basic.xml b/man/sd_bus_message_append_basic.xml
index 975d9734de8..2ee8e2e3450 100644
--- a/man/sd_bus_message_append_basic.xml
+++ b/man/sd_bus_message_append_basic.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_append_basic" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_message_append_string_memfd.xml b/man/sd_bus_message_append_string_memfd.xml
index 519ba945525..4c2d42a50e8 100644
--- a/man/sd_bus_message_append_string_memfd.xml
+++ b/man/sd_bus_message_append_string_memfd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_append_string_memfd"
diff --git a/man/sd_bus_message_append_strv.xml b/man/sd_bus_message_append_strv.xml
index 965b02b21c7..19f5b92d63a 100644
--- a/man/sd_bus_message_append_strv.xml
+++ b/man/sd_bus_message_append_strv.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_append_strv"
diff --git a/man/sd_bus_message_at_end.xml b/man/sd_bus_message_at_end.xml
index 0b8abeebff2..4d7eed57eb3 100644
--- a/man/sd_bus_message_at_end.xml
+++ b/man/sd_bus_message_at_end.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_at_end" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_message_copy.xml b/man/sd_bus_message_copy.xml
index 4f91fb68ca6..8a97ca5ffd0 100644
--- a/man/sd_bus_message_copy.xml
+++ b/man/sd_bus_message_copy.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_copy" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_message_dump.xml b/man/sd_bus_message_dump.xml
index f32ce08050d..183fffd36ad 100644
--- a/man/sd_bus_message_dump.xml
+++ b/man/sd_bus_message_dump.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_dump"
diff --git a/man/sd_bus_message_get_cookie.xml b/man/sd_bus_message_get_cookie.xml
index fec8c61d501..76dc048ec10 100644
--- a/man/sd_bus_message_get_cookie.xml
+++ b/man/sd_bus_message_get_cookie.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_get_cookie"
diff --git a/man/sd_bus_message_get_monotonic_usec.xml b/man/sd_bus_message_get_monotonic_usec.xml
index 5535854644d..7ca0844b312 100644
--- a/man/sd_bus_message_get_monotonic_usec.xml
+++ b/man/sd_bus_message_get_monotonic_usec.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_get_monotonic_usec"
diff --git a/man/sd_bus_message_get_signature.xml b/man/sd_bus_message_get_signature.xml
index 579bf778479..199e6a3db23 100644
--- a/man/sd_bus_message_get_signature.xml
+++ b/man/sd_bus_message_get_signature.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_get_signature" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_message_get_type.xml b/man/sd_bus_message_get_type.xml
index 9d4506c0bf5..a37cde2301a 100644
--- a/man/sd_bus_message_get_type.xml
+++ b/man/sd_bus_message_get_type.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_get_type" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_message_new.xml b/man/sd_bus_message_new.xml
index cf57f7f216c..ffe950b8240 100644
--- a/man/sd_bus_message_new.xml
+++ b/man/sd_bus_message_new.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_new" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_message_new_method_call.xml b/man/sd_bus_message_new_method_call.xml
index 851b58b9191..1a68d318584 100644
--- a/man/sd_bus_message_new_method_call.xml
+++ b/man/sd_bus_message_new_method_call.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_new_method_call"
diff --git a/man/sd_bus_message_new_method_error.xml b/man/sd_bus_message_new_method_error.xml
index c0c4c0cb839..64ceb18a1eb 100644
--- a/man/sd_bus_message_new_method_error.xml
+++ b/man/sd_bus_message_new_method_error.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_new_method_error"
diff --git a/man/sd_bus_message_new_signal.xml b/man/sd_bus_message_new_signal.xml
index be9e2bea435..356c4ad45aa 100644
--- a/man/sd_bus_message_new_signal.xml
+++ b/man/sd_bus_message_new_signal.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_new_signal"
diff --git a/man/sd_bus_message_open_container.xml b/man/sd_bus_message_open_container.xml
index b18273223a4..3055cc9e65c 100644
--- a/man/sd_bus_message_open_container.xml
+++ b/man/sd_bus_message_open_container.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_open_container"
diff --git a/man/sd_bus_message_read.xml b/man/sd_bus_message_read.xml
index 32a31018896..7d10ce4f3a2 100644
--- a/man/sd_bus_message_read.xml
+++ b/man/sd_bus_message_read.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_read"
diff --git a/man/sd_bus_message_read_array.xml b/man/sd_bus_message_read_array.xml
index d1ae2ab1af7..0bc276baf09 100644
--- a/man/sd_bus_message_read_array.xml
+++ b/man/sd_bus_message_read_array.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_read_array">
diff --git a/man/sd_bus_message_read_basic.xml b/man/sd_bus_message_read_basic.xml
index dfc24c656f0..3f5aafc496c 100644
--- a/man/sd_bus_message_read_basic.xml
+++ b/man/sd_bus_message_read_basic.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
diff --git a/man/sd_bus_message_read_strv.xml b/man/sd_bus_message_read_strv.xml
index 9ad12c18f2c..3b4910d7cbf 100644
--- a/man/sd_bus_message_read_strv.xml
+++ b/man/sd_bus_message_read_strv.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_read_strv" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_message_rewind.xml b/man/sd_bus_message_rewind.xml
index 849b1f1f19f..0daedc0f1ce 100644
--- a/man/sd_bus_message_rewind.xml
+++ b/man/sd_bus_message_rewind.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_rewind"
diff --git a/man/sd_bus_message_seal.xml b/man/sd_bus_message_seal.xml
index 0f054bf0fc0..d64486b41ab 100644
--- a/man/sd_bus_message_seal.xml
+++ b/man/sd_bus_message_seal.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_seal"
diff --git a/man/sd_bus_message_sensitive.xml b/man/sd_bus_message_sensitive.xml
index 370719ff113..af46a6ed7ea 100644
--- a/man/sd_bus_message_sensitive.xml
+++ b/man/sd_bus_message_sensitive.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_sensitive" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_message_set_expect_reply.xml b/man/sd_bus_message_set_expect_reply.xml
index 40961f680af..102fcd4984f 100644
--- a/man/sd_bus_message_set_expect_reply.xml
+++ b/man/sd_bus_message_set_expect_reply.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_set_expect_reply" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_message_skip.xml b/man/sd_bus_message_skip.xml
index 97088f7ffef..45adb615adf 100644
--- a/man/sd_bus_message_skip.xml
+++ b/man/sd_bus_message_skip.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_skip" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_message_verify_type.xml b/man/sd_bus_message_verify_type.xml
index 3ed7fbea776..0944079e82c 100644
--- a/man/sd_bus_message_verify_type.xml
+++ b/man/sd_bus_message_verify_type.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_message_verify_type" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_negotiate_fds.xml b/man/sd_bus_negotiate_fds.xml
index 3a46683ba4d..fe34808ed93 100644
--- a/man/sd_bus_negotiate_fds.xml
+++ b/man/sd_bus_negotiate_fds.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_negotiate_fds" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_new.xml b/man/sd_bus_new.xml
index f3720747534..6d12a7ed53a 100644
--- a/man/sd_bus_new.xml
+++ b/man/sd_bus_new.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_new" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_path_encode.xml b/man/sd_bus_path_encode.xml
index 02cd7608861..be8a3b7c098 100644
--- a/man/sd_bus_path_encode.xml
+++ b/man/sd_bus_path_encode.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_path_encode" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_process.xml b/man/sd_bus_process.xml
index c22713a65ed..9417d69c525 100644
--- a/man/sd_bus_process.xml
+++ b/man/sd_bus_process.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
diff --git a/man/sd_bus_query_sender_creds.xml b/man/sd_bus_query_sender_creds.xml
index d47a820adef..f7c802bee9f 100644
--- a/man/sd_bus_query_sender_creds.xml
+++ b/man/sd_bus_query_sender_creds.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_query_sender_creds" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_reply_method_error.xml b/man/sd_bus_reply_method_error.xml
index eb8a285bbb2..66a49fed475 100644
--- a/man/sd_bus_reply_method_error.xml
+++ b/man/sd_bus_reply_method_error.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_reply_method_error"
diff --git a/man/sd_bus_reply_method_return.xml b/man/sd_bus_reply_method_return.xml
index 87dda46a0c7..aca5554bc55 100644
--- a/man/sd_bus_reply_method_return.xml
+++ b/man/sd_bus_reply_method_return.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_reply_method_return"
diff --git a/man/sd_bus_request_name.xml b/man/sd_bus_request_name.xml
index a0a335e8b21..987eefa0860 100644
--- a/man/sd_bus_request_name.xml
+++ b/man/sd_bus_request_name.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_request_name"
diff --git a/man/sd_bus_send.xml b/man/sd_bus_send.xml
index 76f5c269845..8cdfff07baf 100644
--- a/man/sd_bus_send.xml
+++ b/man/sd_bus_send.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_send"
diff --git a/man/sd_bus_set_address.xml b/man/sd_bus_set_address.xml
index 44b839064c0..35ebf330d09 100644
--- a/man/sd_bus_set_address.xml
+++ b/man/sd_bus_set_address.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_set_address"
diff --git a/man/sd_bus_set_close_on_exit.xml b/man/sd_bus_set_close_on_exit.xml
index bad24455eb8..43f6eff093f 100644
--- a/man/sd_bus_set_close_on_exit.xml
+++ b/man/sd_bus_set_close_on_exit.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_set_close_on_exit"
diff --git a/man/sd_bus_set_connected_signal.xml b/man/sd_bus_set_connected_signal.xml
index 6b43adc4f8e..70aeeee0916 100644
--- a/man/sd_bus_set_connected_signal.xml
+++ b/man/sd_bus_set_connected_signal.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_set_connected_signal"
diff --git a/man/sd_bus_set_description.xml b/man/sd_bus_set_description.xml
index 1f7c1bb5c6e..913178e3291 100644
--- a/man/sd_bus_set_description.xml
+++ b/man/sd_bus_set_description.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_set_description" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_set_exit_on_disconnect.xml b/man/sd_bus_set_exit_on_disconnect.xml
index 570a40f892d..25b37fd840d 100644
--- a/man/sd_bus_set_exit_on_disconnect.xml
+++ b/man/sd_bus_set_exit_on_disconnect.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_set_exit_on_disconnect"
diff --git a/man/sd_bus_set_fd.xml b/man/sd_bus_set_fd.xml
index 3d81b465edf..1fcec27ff8e 100644
--- a/man/sd_bus_set_fd.xml
+++ b/man/sd_bus_set_fd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
diff --git a/man/sd_bus_set_method_call_timeout.xml b/man/sd_bus_set_method_call_timeout.xml
index 5ffefb83efd..0ee6ce8f107 100644
--- a/man/sd_bus_set_method_call_timeout.xml
+++ b/man/sd_bus_set_method_call_timeout.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_set_method_call_timeout" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_set_property.xml b/man/sd_bus_set_property.xml
index bbd89742a7d..2294e08741f 100644
--- a/man/sd_bus_set_property.xml
+++ b/man/sd_bus_set_property.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_set_property"
diff --git a/man/sd_bus_set_sender.xml b/man/sd_bus_set_sender.xml
index 127252238d5..0f8e40d3a6a 100644
--- a/man/sd_bus_set_sender.xml
+++ b/man/sd_bus_set_sender.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_set_sender"
diff --git a/man/sd_bus_set_server.xml b/man/sd_bus_set_server.xml
index e6903b8e981..a0f9102c20c 100644
--- a/man/sd_bus_set_server.xml
+++ b/man/sd_bus_set_server.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_set_server"
diff --git a/man/sd_bus_set_watch_bind.xml b/man/sd_bus_set_watch_bind.xml
index 8807c9740e5..34f2966c67a 100644
--- a/man/sd_bus_set_watch_bind.xml
+++ b/man/sd_bus_set_watch_bind.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_set_watch_bind"
diff --git a/man/sd_bus_slot_get_bus.xml b/man/sd_bus_slot_get_bus.xml
index d151818dbd4..b130cf03da3 100644
--- a/man/sd_bus_slot_get_bus.xml
+++ b/man/sd_bus_slot_get_bus.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_slot_get_bus" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_slot_ref.xml b/man/sd_bus_slot_ref.xml
index 11fd046f772..1f925cd9144 100644
--- a/man/sd_bus_slot_ref.xml
+++ b/man/sd_bus_slot_ref.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_slot_ref" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_slot_set_description.xml b/man/sd_bus_slot_set_description.xml
index 4b4ab16b440..b8b58728b0a 100644
--- a/man/sd_bus_slot_set_description.xml
+++ b/man/sd_bus_slot_set_description.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_slot_set_description" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_slot_set_destroy_callback.xml b/man/sd_bus_slot_set_destroy_callback.xml
index a9a9e488223..ac26789ac21 100644
--- a/man/sd_bus_slot_set_destroy_callback.xml
+++ b/man/sd_bus_slot_set_destroy_callback.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_slot_set_destroy_callback"
diff --git a/man/sd_bus_slot_set_floating.xml b/man/sd_bus_slot_set_floating.xml
index 8536b2db7ea..4143b1fe54e 100644
--- a/man/sd_bus_slot_set_floating.xml
+++ b/man/sd_bus_slot_set_floating.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_slot_set_floating" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_slot_set_userdata.xml b/man/sd_bus_slot_set_userdata.xml
index 0e4e6767204..28e877383a2 100644
--- a/man/sd_bus_slot_set_userdata.xml
+++ b/man/sd_bus_slot_set_userdata.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_slot_set_userdata" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_start.xml b/man/sd_bus_start.xml
index dfc5acd1314..67686ae965d 100644
--- a/man/sd_bus_start.xml
+++ b/man/sd_bus_start.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_start"
diff --git a/man/sd_bus_track_add_name.xml b/man/sd_bus_track_add_name.xml
index c89a0f1df42..a7be6a24b8b 100644
--- a/man/sd_bus_track_add_name.xml
+++ b/man/sd_bus_track_add_name.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_track_add_name" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_track_new.xml b/man/sd_bus_track_new.xml
index a1504af1e98..7041e92f786 100644
--- a/man/sd_bus_track_new.xml
+++ b/man/sd_bus_track_new.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_bus_track_new" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_bus_wait.xml b/man/sd_bus_wait.xml
index fe8b541c5e1..6bc8216d5c7 100644
--- a/man/sd_bus_wait.xml
+++ b/man/sd_bus_wait.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
diff --git a/man/sd_device_get_syspath.xml b/man/sd_device_get_syspath.xml
index c8adacd8e2a..718da91e87d 100644
--- a/man/sd_device_get_syspath.xml
+++ b/man/sd_device_get_syspath.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_device_get_syspath"
diff --git a/man/sd_device_ref.xml b/man/sd_device_ref.xml
index e5fc18f7248..818edc2fc69 100644
--- a/man/sd_device_ref.xml
+++ b/man/sd_device_ref.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_device_ref" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_add_child.xml b/man/sd_event_add_child.xml
index cb731f9a26d..3406432afdd 100644
--- a/man/sd_event_add_child.xml
+++ b/man/sd_event_add_child.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_add_child" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_add_defer.xml b/man/sd_event_add_defer.xml
index 5c36ccf2290..af43ef14495 100644
--- a/man/sd_event_add_defer.xml
+++ b/man/sd_event_add_defer.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_add_defer" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_add_inotify.xml b/man/sd_event_add_inotify.xml
index b3056f4b2d7..69c51948992 100644
--- a/man/sd_event_add_inotify.xml
+++ b/man/sd_event_add_inotify.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_add_inotify" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_add_io.xml b/man/sd_event_add_io.xml
index 611698510aa..3935141fc05 100644
--- a/man/sd_event_add_io.xml
+++ b/man/sd_event_add_io.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_add_io" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_add_memory_pressure.xml b/man/sd_event_add_memory_pressure.xml
index 759157b0c61..096f0480efb 100644
--- a/man/sd_event_add_memory_pressure.xml
+++ b/man/sd_event_add_memory_pressure.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_add_memory_pressure" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_add_signal.xml b/man/sd_event_add_signal.xml
index 7f2bb28b779..ec8210b0b80 100644
--- a/man/sd_event_add_signal.xml
+++ b/man/sd_event_add_signal.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_add_signal" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_add_time.xml b/man/sd_event_add_time.xml
index 96e34a3c22c..159d5c9ebd3 100644
--- a/man/sd_event_add_time.xml
+++ b/man/sd_event_add_time.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_add_time" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_exit.xml b/man/sd_event_exit.xml
index 1ff0fa4650f..ccbd0455090 100644
--- a/man/sd_event_exit.xml
+++ b/man/sd_event_exit.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_exit" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_get_fd.xml b/man/sd_event_get_fd.xml
index 86b0d78094a..5c0ee8ca8e5 100644
--- a/man/sd_event_get_fd.xml
+++ b/man/sd_event_get_fd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_get_fd" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_new.xml b/man/sd_event_new.xml
index f307b2476cf..57f448cb669 100644
--- a/man/sd_event_new.xml
+++ b/man/sd_event_new.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_new" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_now.xml b/man/sd_event_now.xml
index 06750209675..6f175a43c1b 100644
--- a/man/sd_event_now.xml
+++ b/man/sd_event_now.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_now" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_run.xml b/man/sd_event_run.xml
index 33fac7f4b0b..a6c74f7e8ca 100644
--- a/man/sd_event_run.xml
+++ b/man/sd_event_run.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_run" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_set_signal_exit.xml b/man/sd_event_set_signal_exit.xml
index 5fd67fdb63c..10b68a0edfc 100644
--- a/man/sd_event_set_signal_exit.xml
+++ b/man/sd_event_set_signal_exit.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_set_signal_exit" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_set_watchdog.xml b/man/sd_event_set_watchdog.xml
index 08b8ef46ca7..9f3e3f8963b 100644
--- a/man/sd_event_set_watchdog.xml
+++ b/man/sd_event_set_watchdog.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_set_watchdog" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_get_event.xml b/man/sd_event_source_get_event.xml
index 3eb084b318c..58902295663 100644
--- a/man/sd_event_source_get_event.xml
+++ b/man/sd_event_source_get_event.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_get_event" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_get_pending.xml b/man/sd_event_source_get_pending.xml
index 4c9613cca01..bc1354b8cf2 100644
--- a/man/sd_event_source_get_pending.xml
+++ b/man/sd_event_source_get_pending.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_get_pending" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_set_description.xml b/man/sd_event_source_set_description.xml
index 5936a5eed62..1e50f2f06e8 100644
--- a/man/sd_event_source_set_description.xml
+++ b/man/sd_event_source_set_description.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_set_description" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_set_destroy_callback.xml b/man/sd_event_source_set_destroy_callback.xml
index c468294d6db..f19d5d1b917 100644
--- a/man/sd_event_source_set_destroy_callback.xml
+++ b/man/sd_event_source_set_destroy_callback.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_set_destroy_callback"
diff --git a/man/sd_event_source_set_enabled.xml b/man/sd_event_source_set_enabled.xml
index 15d5ea9cc4f..625bf13335f 100644
--- a/man/sd_event_source_set_enabled.xml
+++ b/man/sd_event_source_set_enabled.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_set_enabled" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_set_exit_on_failure.xml b/man/sd_event_source_set_exit_on_failure.xml
index 22fcc31bf72..1b6b4b9c497 100644
--- a/man/sd_event_source_set_exit_on_failure.xml
+++ b/man/sd_event_source_set_exit_on_failure.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_set_exit_on_failure" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_set_floating.xml b/man/sd_event_source_set_floating.xml
index 1153cd9ec69..a751114b68b 100644
--- a/man/sd_event_source_set_floating.xml
+++ b/man/sd_event_source_set_floating.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_set_floating" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_set_prepare.xml b/man/sd_event_source_set_prepare.xml
index 8573243db93..59ff0e612c5 100644
--- a/man/sd_event_source_set_prepare.xml
+++ b/man/sd_event_source_set_prepare.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_set_prepare" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_set_priority.xml b/man/sd_event_source_set_priority.xml
index a26c7a2b747..16394d58f3b 100644
--- a/man/sd_event_source_set_priority.xml
+++ b/man/sd_event_source_set_priority.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_set_priority" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_set_ratelimit.xml b/man/sd_event_source_set_ratelimit.xml
index 1e48c938bf7..cc1ce816bc0 100644
--- a/man/sd_event_source_set_ratelimit.xml
+++ b/man/sd_event_source_set_ratelimit.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_set_ratelimit" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_set_userdata.xml b/man/sd_event_source_set_userdata.xml
index 3516b5a7285..ce14ad45505 100644
--- a/man/sd_event_source_set_userdata.xml
+++ b/man/sd_event_source_set_userdata.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_set_userdata" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_source_unref.xml b/man/sd_event_source_unref.xml
index c3c8cbf90b5..15148f98ce4 100644
--- a/man/sd_event_source_unref.xml
+++ b/man/sd_event_source_unref.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_source_unref" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_event_wait.xml b/man/sd_event_wait.xml
index 9bb014091ba..20e1eccd4d1 100644
--- a/man/sd_event_wait.xml
+++ b/man/sd_event_wait.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_event_wait" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_get_seats.xml b/man/sd_get_seats.xml
index 3f3cc1fdf79..f3fd3fb7cd4 100644
--- a/man/sd_get_seats.xml
+++ b/man/sd_get_seats.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_get_seats" conditional='HAVE_PAM'
diff --git a/man/sd_hwdb_get.xml b/man/sd_hwdb_get.xml
index 531f8ae153e..839a59d8edf 100644
--- a/man/sd_hwdb_get.xml
+++ b/man/sd_hwdb_get.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_hwdb_get" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_hwdb_new.xml b/man/sd_hwdb_new.xml
index 8106c7ce141..56f922b55b5 100644
--- a/man/sd_hwdb_new.xml
+++ b/man/sd_hwdb_new.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_hwdb_new" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_id128_get_machine.xml b/man/sd_id128_get_machine.xml
index 8b58e0fcf1d..6904f2953c6 100644
--- a/man/sd_id128_get_machine.xml
+++ b/man/sd_id128_get_machine.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_id128_get_machine" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_id128_randomize.xml b/man/sd_id128_randomize.xml
index b801a881e7f..3fb88b4fb8a 100644
--- a/man/sd_id128_randomize.xml
+++ b/man/sd_id128_randomize.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_id128_randomize" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_id128_to_string.xml b/man/sd_id128_to_string.xml
index 8c77c32a0c4..b2f30305346 100644
--- a/man/sd_id128_to_string.xml
+++ b/man/sd_id128_to_string.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_id128_to_string" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_is_fifo.xml b/man/sd_is_fifo.xml
index 92d3c4762ed..8f6fa43f6b3 100644
--- a/man/sd_is_fifo.xml
+++ b/man/sd_is_fifo.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_is_fifo"
diff --git a/man/sd_journal_add_match.xml b/man/sd_journal_add_match.xml
index 49b1fcd31b6..5d14be5f618 100644
--- a/man/sd_journal_add_match.xml
+++ b/man/sd_journal_add_match.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_add_match" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_enumerate_fields.xml b/man/sd_journal_enumerate_fields.xml
index 9bad13445cf..8298cb00c18 100644
--- a/man/sd_journal_enumerate_fields.xml
+++ b/man/sd_journal_enumerate_fields.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_enumerate_fields" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_get_catalog.xml b/man/sd_journal_get_catalog.xml
index 96719950fb5..230d6d82ce4 100644
--- a/man/sd_journal_get_catalog.xml
+++ b/man/sd_journal_get_catalog.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_get_catalog" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_get_cursor.xml b/man/sd_journal_get_cursor.xml
index 4dcafc73428..305c08b910c 100644
--- a/man/sd_journal_get_cursor.xml
+++ b/man/sd_journal_get_cursor.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_get_cursor" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_get_cutoff_realtime_usec.xml b/man/sd_journal_get_cutoff_realtime_usec.xml
index 07b7c13820a..7a267b38a4f 100644
--- a/man/sd_journal_get_cutoff_realtime_usec.xml
+++ b/man/sd_journal_get_cutoff_realtime_usec.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_get_cutoff_realtime_usec" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_get_data.xml b/man/sd_journal_get_data.xml
index 752ba142df1..61e9268a7ef 100644
--- a/man/sd_journal_get_data.xml
+++ b/man/sd_journal_get_data.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_get_data" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_get_fd.xml b/man/sd_journal_get_fd.xml
index a5418c3c67e..2f7afa87630 100644
--- a/man/sd_journal_get_fd.xml
+++ b/man/sd_journal_get_fd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_get_fd" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_get_realtime_usec.xml b/man/sd_journal_get_realtime_usec.xml
index fab656f1367..37c21c20de5 100644
--- a/man/sd_journal_get_realtime_usec.xml
+++ b/man/sd_journal_get_realtime_usec.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_get_realtime_usec"
diff --git a/man/sd_journal_get_seqnum.xml b/man/sd_journal_get_seqnum.xml
index 6fe0c84ad48..d558bd06b39 100644
--- a/man/sd_journal_get_seqnum.xml
+++ b/man/sd_journal_get_seqnum.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_get_seqnum"
diff --git a/man/sd_journal_get_usage.xml b/man/sd_journal_get_usage.xml
index 166390bb947..c849d79becd 100644
--- a/man/sd_journal_get_usage.xml
+++ b/man/sd_journal_get_usage.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_get_usage" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_has_runtime_files.xml b/man/sd_journal_has_runtime_files.xml
index 90110bebcf6..12870d72cbe 100644
--- a/man/sd_journal_has_runtime_files.xml
+++ b/man/sd_journal_has_runtime_files.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
diff --git a/man/sd_journal_next.xml b/man/sd_journal_next.xml
index ac99b72f646..13888226eb4 100644
--- a/man/sd_journal_next.xml
+++ b/man/sd_journal_next.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_next" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_open.xml b/man/sd_journal_open.xml
index 30555bc844a..836a42387aa 100644
--- a/man/sd_journal_open.xml
+++ b/man/sd_journal_open.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_open"
diff --git a/man/sd_journal_print.xml b/man/sd_journal_print.xml
index 827f42a159b..ea766b2a286 100644
--- a/man/sd_journal_print.xml
+++ b/man/sd_journal_print.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_print" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_query_unique.xml b/man/sd_journal_query_unique.xml
index 77dc2ef47ec..fedee468fef 100644
--- a/man/sd_journal_query_unique.xml
+++ b/man/sd_journal_query_unique.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_query_unique" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_seek_head.xml b/man/sd_journal_seek_head.xml
index e75ec048d81..2172cae37ea 100644
--- a/man/sd_journal_seek_head.xml
+++ b/man/sd_journal_seek_head.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_seek_head" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_journal_stream_fd.xml b/man/sd_journal_stream_fd.xml
index a82b6063c1d..13939ff19e4 100644
--- a/man/sd_journal_stream_fd.xml
+++ b/man/sd_journal_stream_fd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_journal_stream_fd" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_listen_fds.xml b/man/sd_listen_fds.xml
index 94dd0517fc9..8a10677b93d 100644
--- a/man/sd_listen_fds.xml
+++ b/man/sd_listen_fds.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_listen_fds"
diff --git a/man/sd_login_monitor_new.xml b/man/sd_login_monitor_new.xml
index bcd8a3255f1..b6b0bc408d2 100644
--- a/man/sd_login_monitor_new.xml
+++ b/man/sd_login_monitor_new.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_login_monitor_new" conditional='HAVE_PAM'
diff --git a/man/sd_machine_get_class.xml b/man/sd_machine_get_class.xml
index 372453a3423..bc50ea1cc1d 100644
--- a/man/sd_machine_get_class.xml
+++ b/man/sd_machine_get_class.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_machine_get_class" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_notify.xml b/man/sd_notify.xml
index f487bf3937e..287945a46a5 100644
--- a/man/sd_notify.xml
+++ b/man/sd_notify.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_notify"
diff --git a/man/sd_path_lookup.xml b/man/sd_path_lookup.xml
index cb073035f39..f557e4f6bf9 100644
--- a/man/sd_path_lookup.xml
+++ b/man/sd_path_lookup.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_path_lookup" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sd_pid_get_owner_uid.xml b/man/sd_pid_get_owner_uid.xml
index 79d2f3750b8..0855ea79282 100644
--- a/man/sd_pid_get_owner_uid.xml
+++ b/man/sd_pid_get_owner_uid.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_pid_get_owner_uid" conditional='HAVE_PAM'
diff --git a/man/sd_seat_get_active.xml b/man/sd_seat_get_active.xml
index 191ab238e93..b087211bd6c 100644
--- a/man/sd_seat_get_active.xml
+++ b/man/sd_seat_get_active.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_seat_get_active" conditional='HAVE_PAM'
diff --git a/man/sd_session_is_active.xml b/man/sd_session_is_active.xml
index 6275d5f5c7d..e69ef59fd0e 100644
--- a/man/sd_session_is_active.xml
+++ b/man/sd_session_is_active.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_session_is_active" conditional='HAVE_PAM'
diff --git a/man/sd_uid_get_state.xml b/man/sd_uid_get_state.xml
index 9959bd657eb..2a91686e1c7 100644
--- a/man/sd_uid_get_state.xml
+++ b/man/sd_uid_get_state.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_uid_get_state" conditional='HAVE_PAM'
diff --git a/man/sd_watchdog_enabled.xml b/man/sd_watchdog_enabled.xml
index 433754f37e4..0f0f02c5918 100644
--- a/man/sd_watchdog_enabled.xml
+++ b/man/sd_watchdog_enabled.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sd_watchdog_enabled"
diff --git a/man/shutdown.xml b/man/shutdown.xml
index 30e315bede2..b92e5836f50 100644
--- a/man/shutdown.xml
+++ b/man/shutdown.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="shutdown"
diff --git a/man/smbios-type-11.xml b/man/smbios-type-11.xml
index 828aae77661..93252274da1 100644
--- a/man/smbios-type-11.xml
+++ b/man/smbios-type-11.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="smbios-type-11" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/sysctl.d.xml b/man/sysctl.d.xml
index 827f34e9764..9f14289fef7 100644
--- a/man/sysctl.d.xml
+++ b/man/sysctl.d.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="sysctl.d"
     xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemctl.xml b/man/systemctl.xml
index b22c1b19541..4a84df343b7 100644
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd-ac-power.xml b/man/systemd-ac-power.xml
index 58aa706f808..cbf7279f513 100644
--- a/man/systemd-ac-power.xml
+++ b/man/systemd-ac-power.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-ac-power" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-analyze.xml b/man/systemd-analyze.xml
index 68062049c4a..41c0e45df63 100644
--- a/man/systemd-analyze.xml
+++ b/man/systemd-analyze.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-analyze" conditional='ENABLE_ANALYZE'
diff --git a/man/systemd-ask-password-console.service.xml b/man/systemd-ask-password-console.service.xml
index fd45941a681..d103cff0774 100644
--- a/man/systemd-ask-password-console.service.xml
+++ b/man/systemd-ask-password-console.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-ask-password-console.service">
 
diff --git a/man/systemd-ask-password.xml b/man/systemd-ask-password.xml
index 9eccf8fffc6..91bc6f73668 100644
--- a/man/systemd-ask-password.xml
+++ b/man/systemd-ask-password.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-ask-password"
diff --git a/man/systemd-backlight@.service.xml b/man/systemd-backlight@.service.xml
index 95fa518bffd..59e01815f48 100644
--- a/man/systemd-backlight@.service.xml
+++ b/man/systemd-backlight@.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-backlight_.service" conditional='ENABLE_BACKLIGHT'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-battery-check.service.xml b/man/systemd-battery-check.service.xml
index 8be54848ce4..698e9d7c3f4 100644
--- a/man/systemd-battery-check.service.xml
+++ b/man/systemd-battery-check.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-battery-check.service" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-binfmt.service.xml b/man/systemd-binfmt.service.xml
index d1f8fc1b082..68e770c3868 100644
--- a/man/systemd-binfmt.service.xml
+++ b/man/systemd-binfmt.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-binfmt.service" conditional='ENABLE_BINFMT'
     xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-bless-boot-generator.xml b/man/systemd-bless-boot-generator.xml
index 998f50abf0a..81743b935bb 100644
--- a/man/systemd-bless-boot-generator.xml
+++ b/man/systemd-bless-boot-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-bless-boot-generator" conditional='ENABLE_BOOTLOADER'>
 
diff --git a/man/systemd-bless-boot.service.xml b/man/systemd-bless-boot.service.xml
index 10994cf2724..069b33c281b 100644
--- a/man/systemd-bless-boot.service.xml
+++ b/man/systemd-bless-boot.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-bless-boot.service" conditional='ENABLE_BOOTLOADER'
diff --git a/man/systemd-boot-check-no-failures.service.xml b/man/systemd-boot-check-no-failures.service.xml
index 423c02cf2db..dac5037ece9 100644
--- a/man/systemd-boot-check-no-failures.service.xml
+++ b/man/systemd-boot-check-no-failures.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-boot-check-no-failures.service"
diff --git a/man/systemd-boot-random-seed.service.xml b/man/systemd-boot-random-seed.service.xml
index 35e2470c92f..2e7aff53780 100644
--- a/man/systemd-boot-random-seed.service.xml
+++ b/man/systemd-boot-random-seed.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-boot-random-seed.service" conditional='ENABLE_BOOTLOADER'
diff --git a/man/systemd-boot.xml b/man/systemd-boot.xml
index ccefaee7348..74514fb5d06 100644
--- a/man/systemd-boot.xml
+++ b/man/systemd-boot.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-boot" conditional='ENABLE_BOOTLOADER'
diff --git a/man/systemd-bsod.service.xml b/man/systemd-bsod.service.xml
index 9f54b40359e..f5ac3bd5854 100644
--- a/man/systemd-bsod.service.xml
+++ b/man/systemd-bsod.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-bsod.service" conditional='HAVE_QRENCODE' xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-cat.xml b/man/systemd-cat.xml
index 8ebb24572e9..af53b3c6ae8 100644
--- a/man/systemd-cat.xml
+++ b/man/systemd-cat.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-cat"
diff --git a/man/systemd-cgls.xml b/man/systemd-cgls.xml
index a44a60c4a75..5280992c8c6 100644
--- a/man/systemd-cgls.xml
+++ b/man/systemd-cgls.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-cgls"
diff --git a/man/systemd-cgtop.xml b/man/systemd-cgtop.xml
index 1cc52bd5cdc..5b5ab5b7360 100644
--- a/man/systemd-cgtop.xml
+++ b/man/systemd-cgtop.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-cgtop"
diff --git a/man/systemd-coredump.xml b/man/systemd-coredump.xml
index 24f8a4a4c7c..82f1bcd295d 100644
--- a/man/systemd-coredump.xml
+++ b/man/systemd-coredump.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-coredump" conditional='ENABLE_COREDUMP'
diff --git a/man/systemd-creds.xml b/man/systemd-creds.xml
index ae33e2b04a3..7d99b6b8958 100644
--- a/man/systemd-creds.xml
+++ b/man/systemd-creds.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-creds"
diff --git a/man/systemd-cryptenroll.xml b/man/systemd-cryptenroll.xml
index cc8b8fcd7fb..46546176654 100644
--- a/man/systemd-cryptenroll.xml
+++ b/man/systemd-cryptenroll.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-cryptenroll" xmlns:xi="http://www.w3.org/2001/XInclude" conditional='HAVE_LIBCRYPTSETUP'>
 
diff --git a/man/systemd-cryptsetup-generator.xml b/man/systemd-cryptsetup-generator.xml
index fd7a777c6ac..da722f90acb 100644
--- a/man/systemd-cryptsetup-generator.xml
+++ b/man/systemd-cryptsetup-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-cryptsetup-generator" conditional='HAVE_LIBCRYPTSETUP'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-cryptsetup.xml b/man/systemd-cryptsetup.xml
index 40107900a1d..232d199e0fc 100644
--- a/man/systemd-cryptsetup.xml
+++ b/man/systemd-cryptsetup.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-cryptsetup" conditional='HAVE_LIBCRYPTSETUP' xmlns:xi="http://www.w3.org/2001/XInclude">
 
diff --git a/man/systemd-debug-generator.xml b/man/systemd-debug-generator.xml
index eb31a9a9062..5d2dbe2cd5f 100644
--- a/man/systemd-debug-generator.xml
+++ b/man/systemd-debug-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd-delta.xml b/man/systemd-delta.xml
index 4c73915dc96..92b875436b3 100644
--- a/man/systemd-delta.xml
+++ b/man/systemd-delta.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-delta"
diff --git a/man/systemd-detect-virt.xml b/man/systemd-detect-virt.xml
index 1368c204b89..9993ac77828 100644
--- a/man/systemd-detect-virt.xml
+++ b/man/systemd-detect-virt.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-detect-virt"
diff --git a/man/systemd-dissect.xml b/man/systemd-dissect.xml
index 23374fd73bd..27819c02ddc 100644
--- a/man/systemd-dissect.xml
+++ b/man/systemd-dissect.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-dissect" conditional='HAVE_BLKID'
diff --git a/man/systemd-environment-d-generator.xml b/man/systemd-environment-d-generator.xml
index 9a2966a32a0..686c4c4c142 100644
--- a/man/systemd-environment-d-generator.xml
+++ b/man/systemd-environment-d-generator.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd-escape.xml b/man/systemd-escape.xml
index a84b99b334e..df3511536bf 100644
--- a/man/systemd-escape.xml
+++ b/man/systemd-escape.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-escape"
diff --git a/man/systemd-firstboot.xml b/man/systemd-firstboot.xml
index 0f2211176d0..cd1c4b8874c 100644
--- a/man/systemd-firstboot.xml
+++ b/man/systemd-firstboot.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-firstboot" conditional='ENABLE_FIRSTBOOT'
diff --git a/man/systemd-fsck@.service.xml b/man/systemd-fsck@.service.xml
index a138bd0107c..1c5e59f479d 100644
--- a/man/systemd-fsck@.service.xml
+++ b/man/systemd-fsck@.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-fsck_.service" xmlns:xi="http://www.w3.org/2001/XInclude">
 
diff --git a/man/systemd-fstab-generator.xml b/man/systemd-fstab-generator.xml
index 2afc3a1c74e..42c6d27bfc5 100644
--- a/man/systemd-fstab-generator.xml
+++ b/man/systemd-fstab-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-fstab-generator" xmlns:xi="http://www.w3.org/2001/XInclude">
 
diff --git a/man/systemd-getty-generator.xml b/man/systemd-getty-generator.xml
index f9d0f964c1d..574bf9f86b3 100644
--- a/man/systemd-getty-generator.xml
+++ b/man/systemd-getty-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-getty-generator" xmlns:xi="http://www.w3.org/2001/XInclude">
 
diff --git a/man/systemd-gpt-auto-generator.xml b/man/systemd-gpt-auto-generator.xml
index 8247f27ebdf..3b86ef6d2dd 100644
--- a/man/systemd-gpt-auto-generator.xml
+++ b/man/systemd-gpt-auto-generator.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-gpt-auto-generator" conditional='HAVE_BLKID'
diff --git a/man/systemd-hibernate-resume-generator.xml b/man/systemd-hibernate-resume-generator.xml
index 9772d5fae39..6de5c19b510 100644
--- a/man/systemd-hibernate-resume-generator.xml
+++ b/man/systemd-hibernate-resume-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-hibernate-resume-generator" conditional='ENABLE_HIBERNATE'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-hibernate-resume.service.xml b/man/systemd-hibernate-resume.service.xml
index 0bc0b0e47a6..6bbce200000 100644
--- a/man/systemd-hibernate-resume.service.xml
+++ b/man/systemd-hibernate-resume.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-hibernate-resume.service" conditional='ENABLE_HIBERNATE'>
 
diff --git a/man/systemd-homed.service.xml b/man/systemd-homed.service.xml
index 58198e66f41..a4561776c9f 100644
--- a/man/systemd-homed.service.xml
+++ b/man/systemd-homed.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-homed.service" conditional='ENABLE_HOMED'
diff --git a/man/systemd-hostnamed.service.xml b/man/systemd-hostnamed.service.xml
index ac600aed4a8..c2a4015ff0b 100644
--- a/man/systemd-hostnamed.service.xml
+++ b/man/systemd-hostnamed.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-hostnamed.service" conditional='ENABLE_HOSTNAMED'>
diff --git a/man/systemd-hwdb.xml b/man/systemd-hwdb.xml
index de71f1d3025..ff3821bb2d2 100644
--- a/man/systemd-hwdb.xml
+++ b/man/systemd-hwdb.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-hwdb" conditional="ENABLE_HWDB"
diff --git a/man/systemd-id128.xml b/man/systemd-id128.xml
index 348027f67b2..b1e6e245865 100644
--- a/man/systemd-id128.xml
+++ b/man/systemd-id128.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-id128" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-importd.service.xml b/man/systemd-importd.service.xml
index 7e1677b17f0..7e617cfc67a 100644
--- a/man/systemd-importd.service.xml
+++ b/man/systemd-importd.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-importd.service" conditional='ENABLE_IMPORTD'>
diff --git a/man/systemd-inhibit.xml b/man/systemd-inhibit.xml
index aa8e2bfc68f..06f14728215 100644
--- a/man/systemd-inhibit.xml
+++ b/man/systemd-inhibit.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-inhibit"
diff --git a/man/systemd-initctl.service.xml b/man/systemd-initctl.service.xml
index b435800c394..af092b88b35 100644
--- a/man/systemd-initctl.service.xml
+++ b/man/systemd-initctl.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-initctl.service" conditional='HAVE_SYSV_COMPAT'>
diff --git a/man/systemd-integritysetup-generator.xml b/man/systemd-integritysetup-generator.xml
index 26aa67dd428..e7cc5a32935 100644
--- a/man/systemd-integritysetup-generator.xml
+++ b/man/systemd-integritysetup-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-integritysetup-generator" conditional='HAVE_LIBCRYPTSETUP'>
 
diff --git a/man/systemd-integritysetup@.service.xml b/man/systemd-integritysetup@.service.xml
index 831c3690e1b..dc188b55ab7 100644
--- a/man/systemd-integritysetup@.service.xml
+++ b/man/systemd-integritysetup@.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-integritysetup_.service" conditional='HAVE_LIBCRYPTSETUP'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-journal-gatewayd.service.xml b/man/systemd-journal-gatewayd.service.xml
index 6b485207e13..106d8a0fa3c 100644
--- a/man/systemd-journal-gatewayd.service.xml
+++ b/man/systemd-journal-gatewayd.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-journal-gatewayd.service" conditional='HAVE_MICROHTTPD'
diff --git a/man/systemd-journal-remote.service.xml b/man/systemd-journal-remote.service.xml
index 671a5e4fa0e..18a075e3b12 100644
--- a/man/systemd-journal-remote.service.xml
+++ b/man/systemd-journal-remote.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd-journal-upload.service.xml b/man/systemd-journal-upload.service.xml
index 0a79653ebe2..b8ee645402d 100644
--- a/man/systemd-journal-upload.service.xml
+++ b/man/systemd-journal-upload.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd-journald.service.xml b/man/systemd-journald.service.xml
index 4b236917d47..91be3178ddf 100644
--- a/man/systemd-journald.service.xml
+++ b/man/systemd-journald.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-journald.service"
diff --git a/man/systemd-localed.service.xml b/man/systemd-localed.service.xml
index 5018bb51247..ef597de278b 100644
--- a/man/systemd-localed.service.xml
+++ b/man/systemd-localed.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-localed.service" conditional='ENABLE_LOCALED'>
diff --git a/man/systemd-logind.service.xml b/man/systemd-logind.service.xml
index e95e9bb8881..e14d2d2ce24 100644
--- a/man/systemd-logind.service.xml
+++ b/man/systemd-logind.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-logind.service" conditional='ENABLE_LOGIND'>
diff --git a/man/systemd-machine-id-commit.service.xml b/man/systemd-machine-id-commit.service.xml
index dedd611c56d..2288e167404 100644
--- a/man/systemd-machine-id-commit.service.xml
+++ b/man/systemd-machine-id-commit.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
 
diff --git a/man/systemd-machine-id-setup.xml b/man/systemd-machine-id-setup.xml
index d308f2c85a3..8ece65eacc4 100644
--- a/man/systemd-machine-id-setup.xml
+++ b/man/systemd-machine-id-setup.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-machine-id-setup"
diff --git a/man/systemd-machined.service.xml b/man/systemd-machined.service.xml
index 2552d00a7c4..f3d77559733 100644
--- a/man/systemd-machined.service.xml
+++ b/man/systemd-machined.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-machined.service" conditional='ENABLE_MACHINED'>
diff --git a/man/systemd-makefs@.service.xml b/man/systemd-makefs@.service.xml
index 5447de04056..c5b3d85b528 100644
--- a/man/systemd-makefs@.service.xml
+++ b/man/systemd-makefs@.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-makefs_.service">
 
diff --git a/man/systemd-measure.xml b/man/systemd-measure.xml
index dad112cc966..ba3e920b82d 100644
--- a/man/systemd-measure.xml
+++ b/man/systemd-measure.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-measure" xmlns:xi="http://www.w3.org/2001/XInclude" conditional='HAVE_TPM2'>
 
diff --git a/man/systemd-modules-load.service.xml b/man/systemd-modules-load.service.xml
index 6bee29b5e99..683e7f86103 100644
--- a/man/systemd-modules-load.service.xml
+++ b/man/systemd-modules-load.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-modules-load.service" conditional='HAVE_KMOD'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-mount.xml b/man/systemd-mount.xml
index cb51dce6ab2..558fd03fc14 100644
--- a/man/systemd-mount.xml
+++ b/man/systemd-mount.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-mount"
diff --git a/man/systemd-network-generator.service.xml b/man/systemd-network-generator.service.xml
index 754b54d1342..5682339560a 100644
--- a/man/systemd-network-generator.service.xml
+++ b/man/systemd-network-generator.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-network-generator.service" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-networkd-wait-online.service.xml b/man/systemd-networkd-wait-online.service.xml
index a1de8c1e053..eac903f6842 100644
--- a/man/systemd-networkd-wait-online.service.xml
+++ b/man/systemd-networkd-wait-online.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-networkd-wait-online.service" conditional='ENABLE_NETWORKD'
diff --git a/man/systemd-networkd.service.xml b/man/systemd-networkd.service.xml
index 31f999945e7..b33a7f65108 100644
--- a/man/systemd-networkd.service.xml
+++ b/man/systemd-networkd.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-networkd.service" conditional='ENABLE_NETWORKD'>
diff --git a/man/systemd-notify.xml b/man/systemd-notify.xml
index 068cb2d9a24..14ef3aadf3b 100644
--- a/man/systemd-notify.xml
+++ b/man/systemd-notify.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-notify"
diff --git a/man/systemd-nspawn.xml b/man/systemd-nspawn.xml
index 836a80dbe07..e721f0e5ab4 100644
--- a/man/systemd-nspawn.xml
+++ b/man/systemd-nspawn.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd-oomd.service.xml b/man/systemd-oomd.service.xml
index 3537da08e23..5299de6e3d2 100644
--- a/man/systemd-oomd.service.xml
+++ b/man/systemd-oomd.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-oomd.service" conditional='ENABLE_OOMD'
diff --git a/man/systemd-path.xml b/man/systemd-path.xml
index b3b87af6882..d5a14bc1719 100644
--- a/man/systemd-path.xml
+++ b/man/systemd-path.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-path"
diff --git a/man/systemd-pcrlock.xml b/man/systemd-pcrlock.xml
index 42a07e9a1f8..63d536f17fa 100644
--- a/man/systemd-pcrlock.xml
+++ b/man/systemd-pcrlock.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-pcrlock" xmlns:xi="http://www.w3.org/2001/XInclude" conditional='HAVE_TPM2'>
 
diff --git a/man/systemd-pcrphase.service.xml b/man/systemd-pcrphase.service.xml
index b8d066c90fd..03de3548769 100644
--- a/man/systemd-pcrphase.service.xml
+++ b/man/systemd-pcrphase.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-pcrphase.service" conditional='ENABLE_BOOTLOADER'
diff --git a/man/systemd-portabled.service.xml b/man/systemd-portabled.service.xml
index 49d09b54e4f..abf42cff2fc 100644
--- a/man/systemd-portabled.service.xml
+++ b/man/systemd-portabled.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-portabled.service" conditional='ENABLE_PORTABLED'>
diff --git a/man/systemd-poweroff.service.xml b/man/systemd-poweroff.service.xml
index 89e306642d8..786bb6bf132 100644
--- a/man/systemd-poweroff.service.xml
+++ b/man/systemd-poweroff.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-poweroff.service">
diff --git a/man/systemd-pstore.service.xml b/man/systemd-pstore.service.xml
index 66ad5572c82..12c54595977 100644
--- a/man/systemd-pstore.service.xml
+++ b/man/systemd-pstore.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-pstore" conditional='ENABLE_PSTORE'
diff --git a/man/systemd-quotacheck.service.xml b/man/systemd-quotacheck.service.xml
index d3142b10a9f..034d13a1488 100644
--- a/man/systemd-quotacheck.service.xml
+++ b/man/systemd-quotacheck.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-quotacheck.service" conditional='ENABLE_QUOTACHECK'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-random-seed.service.xml b/man/systemd-random-seed.service.xml
index c82255c4843..b55e5deab15 100644
--- a/man/systemd-random-seed.service.xml
+++ b/man/systemd-random-seed.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-random-seed.service" conditional='ENABLE_RANDOMSEED'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-rc-local-generator.xml b/man/systemd-rc-local-generator.xml
index cd23cdc9152..f7f69998b1b 100644
--- a/man/systemd-rc-local-generator.xml
+++ b/man/systemd-rc-local-generator.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd-remount-fs.service.xml b/man/systemd-remount-fs.service.xml
index a4b6dee9c35..ce391d17101 100644
--- a/man/systemd-remount-fs.service.xml
+++ b/man/systemd-remount-fs.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-remount-fs.service">
 
diff --git a/man/systemd-repart.xml b/man/systemd-repart.xml
index 9c82a8c6dbf..76d1279b1a2 100644
--- a/man/systemd-repart.xml
+++ b/man/systemd-repart.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-repart" conditional='ENABLE_REPART'
diff --git a/man/systemd-resolved.service.xml b/man/systemd-resolved.service.xml
index 458d55b9b8d..94882b38bd9 100644
--- a/man/systemd-resolved.service.xml
+++ b/man/systemd-resolved.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-resolved.service" conditional='ENABLE_RESOLVE'
diff --git a/man/systemd-rfkill.service.xml b/man/systemd-rfkill.service.xml
index f2ff4869ec0..9449a048e3a 100644
--- a/man/systemd-rfkill.service.xml
+++ b/man/systemd-rfkill.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-rfkill.service" conditional='ENABLE_RFKILL'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-run-generator.xml b/man/systemd-run-generator.xml
index 037f1116815..a78c1898bcf 100644
--- a/man/systemd-run-generator.xml
+++ b/man/systemd-run-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-run-generator">
 
diff --git a/man/systemd-run.xml b/man/systemd-run.xml
index 7957e396a92..3e93d3a6781 100644
--- a/man/systemd-run.xml
+++ b/man/systemd-run.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-run"
diff --git a/man/systemd-sleep.conf.xml b/man/systemd-sleep.conf.xml
index 54d4d2c74e0..f7e753990a0 100644
--- a/man/systemd-sleep.conf.xml
+++ b/man/systemd-sleep.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-sleep.conf"
diff --git a/man/systemd-socket-activate.xml b/man/systemd-socket-activate.xml
index 1797b2fbe41..4d0a581c009 100644
--- a/man/systemd-socket-activate.xml
+++ b/man/systemd-socket-activate.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-socket-activate"
diff --git a/man/systemd-socket-proxyd.xml b/man/systemd-socket-proxyd.xml
index 6b1d3fc3134..829cc958051 100644
--- a/man/systemd-socket-proxyd.xml
+++ b/man/systemd-socket-proxyd.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-socket-proxyd"
     xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-soft-reboot.service.xml b/man/systemd-soft-reboot.service.xml
index fd49b5f4344..0a35a77b89a 100644
--- a/man/systemd-soft-reboot.service.xml
+++ b/man/systemd-soft-reboot.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-soft-reboot.service">
diff --git a/man/systemd-stdio-bridge.xml b/man/systemd-stdio-bridge.xml
index 36cb4f646fd..ab5926c2691 100644
--- a/man/systemd-stdio-bridge.xml
+++ b/man/systemd-stdio-bridge.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-stdio-bridge"
diff --git a/man/systemd-storagetm.service.xml b/man/systemd-storagetm.service.xml
index 728b3ae37a0..84e91dd47a0 100644
--- a/man/systemd-storagetm.service.xml
+++ b/man/systemd-storagetm.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-storagetm.service" conditional='ENABLE_STORAGETM'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-stub.xml b/man/systemd-stub.xml
index e761bffea51..5b47d752cac 100644
--- a/man/systemd-stub.xml
+++ b/man/systemd-stub.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-stub" conditional='ENABLE_BOOTLOADER'
diff --git a/man/systemd-suspend.service.xml b/man/systemd-suspend.service.xml
index 93b51e93f30..d8ea8f5f817 100644
--- a/man/systemd-suspend.service.xml
+++ b/man/systemd-suspend.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-suspend.service"
diff --git a/man/systemd-sysctl.service.xml b/man/systemd-sysctl.service.xml
index bdc29850199..950e0c82ef1 100644
--- a/man/systemd-sysctl.service.xml
+++ b/man/systemd-sysctl.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-sysctl.service"
     xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-sysext.xml b/man/systemd-sysext.xml
index bf7b76ff02c..d32804409b9 100644
--- a/man/systemd-sysext.xml
+++ b/man/systemd-sysext.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-sysext"
diff --git a/man/systemd-system-update-generator.xml b/man/systemd-system-update-generator.xml
index 1f4369a8147..67f5dacc347 100644
--- a/man/systemd-system-update-generator.xml
+++ b/man/systemd-system-update-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-system-update-generator">
 
diff --git a/man/systemd-system.conf.xml b/man/systemd-system.conf.xml
index cc58dfcb50d..31b64213995 100644
--- a/man/systemd-system.conf.xml
+++ b/man/systemd-system.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd-sysupdate.xml b/man/systemd-sysupdate.xml
index 89c99e2ec96..8c1228c7d9d 100644
--- a/man/systemd-sysupdate.xml
+++ b/man/systemd-sysupdate.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-sysupdate" conditional='ENABLE_SYSUPDATE'
diff --git a/man/systemd-sysusers.xml b/man/systemd-sysusers.xml
index f89b839ce27..d398c5d361a 100644
--- a/man/systemd-sysusers.xml
+++ b/man/systemd-sysusers.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-sysusers"
diff --git a/man/systemd-sysv-generator.xml b/man/systemd-sysv-generator.xml
index fc85db9d41e..b13837b9b9e 100644
--- a/man/systemd-sysv-generator.xml
+++ b/man/systemd-sysv-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-sysv-generator" conditional="HAVE_SYSV_COMPAT">
 
diff --git a/man/systemd-time-wait-sync.service.xml b/man/systemd-time-wait-sync.service.xml
index 5653c50f5d9..0a0b64eb441 100644
--- a/man/systemd-time-wait-sync.service.xml
+++ b/man/systemd-time-wait-sync.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-time-wait-sync.service" conditional='ENABLE_TIMESYNCD'
diff --git a/man/systemd-timedated.service.xml b/man/systemd-timedated.service.xml
index dd1f19d974b..29741f5ca76 100644
--- a/man/systemd-timedated.service.xml
+++ b/man/systemd-timedated.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-timedated.service" conditional='ENABLE_TIMEDATED'>
diff --git a/man/systemd-timesyncd.service.xml b/man/systemd-timesyncd.service.xml
index 22e5f73282f..25b236df5fa 100644
--- a/man/systemd-timesyncd.service.xml
+++ b/man/systemd-timesyncd.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-timesyncd.service" conditional='ENABLE_TIMESYNCD'
diff --git a/man/systemd-tmpfiles.xml b/man/systemd-tmpfiles.xml
index 3b103eb7b1b..8486e75c87f 100644
--- a/man/systemd-tmpfiles.xml
+++ b/man/systemd-tmpfiles.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-tmpfiles"
diff --git a/man/systemd-tpm2-setup.service.xml b/man/systemd-tpm2-setup.service.xml
index 8c138950c76..245d3444b1a 100644
--- a/man/systemd-tpm2-setup.service.xml
+++ b/man/systemd-tpm2-setup.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-tpm2-setup.service" conditional='ENABLE_BOOTLOADER'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-tty-ask-password-agent.xml b/man/systemd-tty-ask-password-agent.xml
index c4b032173b9..423fdef8d8e 100644
--- a/man/systemd-tty-ask-password-agent.xml
+++ b/man/systemd-tty-ask-password-agent.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-tty-ask-password-agent"
diff --git a/man/systemd-udev-settle.service.xml b/man/systemd-udev-settle.service.xml
index 81ecaa1312d..8aa6aa1f517 100644
--- a/man/systemd-udev-settle.service.xml
+++ b/man/systemd-udev-settle.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-udev-settle.service"
diff --git a/man/systemd-udevd.service.xml b/man/systemd-udevd.service.xml
index 78254ac3d16..b63ee4bb771 100644
--- a/man/systemd-udevd.service.xml
+++ b/man/systemd-udevd.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-udevd.service"
diff --git a/man/systemd-update-done.service.xml b/man/systemd-update-done.service.xml
index 0fc09ddc232..46bb2f41c88 100644
--- a/man/systemd-update-done.service.xml
+++ b/man/systemd-update-done.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-update-done.service">
 
diff --git a/man/systemd-update-utmp.service.xml b/man/systemd-update-utmp.service.xml
index 94beba4cc4c..2d7dee9d3a5 100644
--- a/man/systemd-update-utmp.service.xml
+++ b/man/systemd-update-utmp.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-update-utmp.service" conditional="ENABLE_UTMP">
 
diff --git a/man/systemd-user-sessions.service.xml b/man/systemd-user-sessions.service.xml
index f2b8b8365d5..a8c9b77ab02 100644
--- a/man/systemd-user-sessions.service.xml
+++ b/man/systemd-user-sessions.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-user-sessions.service" conditional='HAVE_PAM'>
 
diff --git a/man/systemd-userdbd.service.xml b/man/systemd-userdbd.service.xml
index 90552221626..16f1110c06d 100644
--- a/man/systemd-userdbd.service.xml
+++ b/man/systemd-userdbd.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-userdbd.service" conditional='ENABLE_USERDB'>
diff --git a/man/systemd-vconsole-setup.service.xml b/man/systemd-vconsole-setup.service.xml
index 0d7402ab9ef..1fa3abe53e3 100644
--- a/man/systemd-vconsole-setup.service.xml
+++ b/man/systemd-vconsole-setup.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-vconsole-setup.service" conditional='ENABLE_VCONSOLE'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-veritysetup-generator.xml b/man/systemd-veritysetup-generator.xml
index 1e75e7d8d1d..f583468229d 100644
--- a/man/systemd-veritysetup-generator.xml
+++ b/man/systemd-veritysetup-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-veritysetup-generator" conditional='HAVE_LIBCRYPTSETUP'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-veritysetup@.service.xml b/man/systemd-veritysetup@.service.xml
index a549b41b704..c715dac4223 100644
--- a/man/systemd-veritysetup@.service.xml
+++ b/man/systemd-veritysetup@.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-veritysetup_.service" conditional='HAVE_LIBCRYPTSETUP'
           xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd-vmspawn.xml b/man/systemd-vmspawn.xml
index 05532bfc526..cd46f823ad3 100644
--- a/man/systemd-vmspawn.xml
+++ b/man/systemd-vmspawn.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd-vmspawn" conditional="ENABLE_VMSPAWN"
diff --git a/man/systemd-volatile-root.service.xml b/man/systemd-volatile-root.service.xml
index 7c29747b5e8..b1a9f6e1ab7 100644
--- a/man/systemd-volatile-root.service.xml
+++ b/man/systemd-volatile-root.service.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-volatile-root.service">
 
diff --git a/man/systemd-xdg-autostart-generator.xml b/man/systemd-xdg-autostart-generator.xml
index 6e42e964d9b..7faaba29d35 100644
--- a/man/systemd-xdg-autostart-generator.xml
+++ b/man/systemd-xdg-autostart-generator.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd-xdg-autostart-generator" conditional="ENABLE_XDG_AUTOSTART">
 
diff --git a/man/systemd.automount.xml b/man/systemd.automount.xml
index caeea032d47..20ae3c76df4 100644
--- a/man/systemd.automount.xml
+++ b/man/systemd.automount.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.automount" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.device.xml b/man/systemd.device.xml
index 556d47d2b69..9e53a46a066 100644
--- a/man/systemd.device.xml
+++ b/man/systemd.device.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.device">
diff --git a/man/systemd.dnssd.xml b/man/systemd.dnssd.xml
index b157b7073de..2b29a99dc82 100644
--- a/man/systemd.dnssd.xml
+++ b/man/systemd.dnssd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.dnssd"
diff --git a/man/systemd.environment-generator.xml b/man/systemd.environment-generator.xml
index 3e0587ab747..79baffc8716 100644
--- a/man/systemd.environment-generator.xml
+++ b/man/systemd.environment-generator.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml
index d7854ba04ac..e2b29100845 100644
--- a/man/systemd.exec.xml
+++ b/man/systemd.exec.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.exec" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.generator.xml b/man/systemd.generator.xml
index 16aa54937a0..a7e7467e8b9 100644
--- a/man/systemd.generator.xml
+++ b/man/systemd.generator.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd.image-policy.xml b/man/systemd.image-policy.xml
index 09735b9eeab..f26aeb5b5ed 100644
--- a/man/systemd.image-policy.xml
+++ b/man/systemd.image-policy.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.image-policy">
diff --git a/man/systemd.journal-fields.xml b/man/systemd.journal-fields.xml
index 2e0936eff1d..f734600b447 100644
--- a/man/systemd.journal-fields.xml
+++ b/man/systemd.journal-fields.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.journal-fields" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.kill.xml b/man/systemd.kill.xml
index 631b503f454..f0279b4729b 100644
--- a/man/systemd.kill.xml
+++ b/man/systemd.kill.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.kill" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.link.xml b/man/systemd.link.xml
index 22cbec13e40..4d99cd88f6b 100644
--- a/man/systemd.link.xml
+++ b/man/systemd.link.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.link"
diff --git a/man/systemd.mount.xml b/man/systemd.mount.xml
index e54d844ab74..85eb7942698 100644
--- a/man/systemd.mount.xml
+++ b/man/systemd.mount.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.mount" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.net-naming-scheme.xml b/man/systemd.net-naming-scheme.xml
index ed1c5ec46bc..09df42aea27 100644
--- a/man/systemd.net-naming-scheme.xml
+++ b/man/systemd.net-naming-scheme.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.net-naming-scheme" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.netdev.xml b/man/systemd.netdev.xml
index 93c2b8d4c10..cd77e725bc4 100644
--- a/man/systemd.netdev.xml
+++ b/man/systemd.netdev.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.netdev" conditional='ENABLE_NETWORKD'
diff --git a/man/systemd.network.xml b/man/systemd.network.xml
index 1f30cc13b30..6b210cb3417 100644
--- a/man/systemd.network.xml
+++ b/man/systemd.network.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.network" conditional='ENABLE_NETWORKD'
diff --git a/man/systemd.nspawn.xml b/man/systemd.nspawn.xml
index 19f692bcdde..591933a10cc 100644
--- a/man/systemd.nspawn.xml
+++ b/man/systemd.nspawn.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd.offline-updates.xml b/man/systemd.offline-updates.xml
index 716ce49ca7a..0195022a29b 100644
--- a/man/systemd.offline-updates.xml
+++ b/man/systemd.offline-updates.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.offline-updates">
diff --git a/man/systemd.path.xml b/man/systemd.path.xml
index a0a19cbc1da..6281c3d8474 100644
--- a/man/systemd.path.xml
+++ b/man/systemd.path.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.path" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.pcrlock.xml b/man/systemd.pcrlock.xml
index e0fe5bccd0e..7655f2edfe1 100644
--- a/man/systemd.pcrlock.xml
+++ b/man/systemd.pcrlock.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <refentry id="systemd.pcrlock"
           xmlns:xi="http://www.w3.org/2001/XInclude">
 
diff --git a/man/systemd.preset.xml b/man/systemd.preset.xml
index 8dbc17fd52a..f84a0535487 100644
--- a/man/systemd.preset.xml
+++ b/man/systemd.preset.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="systemd.preset">
 
diff --git a/man/systemd.resource-control.xml b/man/systemd.resource-control.xml
index a86907b2bbf..2c5785cca9b 100644
--- a/man/systemd.resource-control.xml
+++ b/man/systemd.resource-control.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.resource-control" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.scope.xml b/man/systemd.scope.xml
index c0816d15b01..c00ee3bb256 100644
--- a/man/systemd.scope.xml
+++ b/man/systemd.scope.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.scope" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.service.xml b/man/systemd.service.xml
index 5f7b128be47..47fbe53fcd1 100644
--- a/man/systemd.service.xml
+++ b/man/systemd.service.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.service" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.slice.xml b/man/systemd.slice.xml
index 44ff1d815ee..b6ee58d661a 100644
--- a/man/systemd.slice.xml
+++ b/man/systemd.slice.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.slice">
diff --git a/man/systemd.socket.xml b/man/systemd.socket.xml
index 8b3c7040294..0c74d5b2a9d 100644
--- a/man/systemd.socket.xml
+++ b/man/systemd.socket.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.socket" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.special.xml b/man/systemd.special.xml
index 753ff53cd0e..ff0f73f1918 100644
--- a/man/systemd.special.xml
+++ b/man/systemd.special.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.special" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.swap.xml b/man/systemd.swap.xml
index 70b2c9eeda7..8b35a9469a6 100644
--- a/man/systemd.swap.xml
+++ b/man/systemd.swap.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.swap" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.syntax.xml b/man/systemd.syntax.xml
index a0d63f994dd..1dc46255ef3 100644
--- a/man/systemd.syntax.xml
+++ b/man/systemd.syntax.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd.system-credentials.xml b/man/systemd.system-credentials.xml
index 7f420d41756..ab6cab2e06a 100644
--- a/man/systemd.system-credentials.xml
+++ b/man/systemd.system-credentials.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.system-credentials" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.target.xml b/man/systemd.target.xml
index c748be4a340..37f5857eaaf 100644
--- a/man/systemd.target.xml
+++ b/man/systemd.target.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.target">
diff --git a/man/systemd.time.xml b/man/systemd.time.xml
index 9fe451aaedf..885c4644cbf 100644
--- a/man/systemd.time.xml
+++ b/man/systemd.time.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.time">
diff --git a/man/systemd.timer.xml b/man/systemd.timer.xml
index 6c592546cf0..ad79552ed66 100644
--- a/man/systemd.timer.xml
+++ b/man/systemd.timer.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd.timer" xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index 11154bdc76f..c447cd06388 100644
--- a/man/systemd.unit.xml
+++ b/man/systemd.unit.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/systemd.xml b/man/systemd.xml
index 0fa625a6b32..960df97f0b3 100644
--- a/man/systemd.xml
+++ b/man/systemd.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="systemd"
diff --git a/man/sysupdate.d.xml b/man/sysupdate.d.xml
index 0728e7d7dd5..a9da9164ef8 100644
--- a/man/sysupdate.d.xml
+++ b/man/sysupdate.d.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="sysupdate.d" conditional='ENABLE_SYSUPDATE'
diff --git a/man/sysusers.d.xml b/man/sysusers.d.xml
index eaec4ebce6e..760db6350b5 100644
--- a/man/sysusers.d.xml
+++ b/man/sysusers.d.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="sysusers.d" conditional='ENABLE_SYSUSERS'
     xmlns:xi="http://www.w3.org/2001/XInclude">
diff --git a/man/telinit.xml b/man/telinit.xml
index 875f0746e1c..7ffd8cd9b72 100644
--- a/man/telinit.xml
+++ b/man/telinit.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="telinit" conditional='HAVE_SYSV_COMPAT'
diff --git a/man/timedatectl.xml b/man/timedatectl.xml
index 7f5f196c990..5e6a242fc16 100644
--- a/man/timedatectl.xml
+++ b/man/timedatectl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="timedatectl" conditional='ENABLE_TIMEDATECTL'
diff --git a/man/timesyncd.conf.xml b/man/timesyncd.conf.xml
index 2b6ea17380b..498bfa330be 100644
--- a/man/timesyncd.conf.xml
+++ b/man/timesyncd.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="timesyncd.conf" conditional='ENABLE_TIMESYNCD'
diff --git a/man/tmpfiles.d.xml b/man/tmpfiles.d.xml
index 54cd95c7ef6..f8bdffcae33 100644
--- a/man/tmpfiles.d.xml
+++ b/man/tmpfiles.d.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
 
diff --git a/man/udev.conf.xml b/man/udev.conf.xml
index c4f76ef5b21..4ebde474a30 100644
--- a/man/udev.conf.xml
+++ b/man/udev.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="udev.conf"
diff --git a/man/udev.xml b/man/udev.xml
index 38ca1a5b463..3619222962b 100644
--- a/man/udev.xml
+++ b/man/udev.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
diff --git a/man/udev_device_get_syspath.xml b/man/udev_device_get_syspath.xml
index f625fec9307..43269f9843f 100644
--- a/man/udev_device_get_syspath.xml
+++ b/man/udev_device_get_syspath.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udev_device_has_tag.xml b/man/udev_device_has_tag.xml
index 9ea21ea9308..722fafe0814 100644
--- a/man/udev_device_has_tag.xml
+++ b/man/udev_device_has_tag.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udev_device_new_from_syspath.xml b/man/udev_device_new_from_syspath.xml
index b205e57c1cc..461ffb8554b 100644
--- a/man/udev_device_new_from_syspath.xml
+++ b/man/udev_device_new_from_syspath.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udev_enumerate_add_match_subsystem.xml b/man/udev_enumerate_add_match_subsystem.xml
index 2953b49a2e6..24dbb3579e9 100644
--- a/man/udev_enumerate_add_match_subsystem.xml
+++ b/man/udev_enumerate_add_match_subsystem.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udev_enumerate_new.xml b/man/udev_enumerate_new.xml
index 78c05e70edc..ba5fec9557e 100644
--- a/man/udev_enumerate_new.xml
+++ b/man/udev_enumerate_new.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udev_enumerate_scan_devices.xml b/man/udev_enumerate_scan_devices.xml
index 08e70e3b9e1..47912a26f3d 100644
--- a/man/udev_enumerate_scan_devices.xml
+++ b/man/udev_enumerate_scan_devices.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udev_list_entry.xml b/man/udev_list_entry.xml
index c0ee6aed80d..46fcde8e1a5 100644
--- a/man/udev_list_entry.xml
+++ b/man/udev_list_entry.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udev_monitor_filter_update.xml b/man/udev_monitor_filter_update.xml
index 2c06230b5a2..210b6640891 100644
--- a/man/udev_monitor_filter_update.xml
+++ b/man/udev_monitor_filter_update.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udev_monitor_new_from_netlink.xml b/man/udev_monitor_new_from_netlink.xml
index d762840aa2a..9f12d746c09 100644
--- a/man/udev_monitor_new_from_netlink.xml
+++ b/man/udev_monitor_new_from_netlink.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udev_monitor_receive_device.xml b/man/udev_monitor_receive_device.xml
index 89fb6616242..94d2027c607 100644
--- a/man/udev_monitor_receive_device.xml
+++ b/man/udev_monitor_receive_device.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udev_new.xml b/man/udev_new.xml
index cf360f6fe84..7b13081fb10 100644
--- a/man/udev_new.xml
+++ b/man/udev_new.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/udevadm.xml b/man/udevadm.xml
index b254a7f249c..643321b0a23 100644
--- a/man/udevadm.xml
+++ b/man/udevadm.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="udevadm"
diff --git a/man/uid0.xml b/man/uid0.xml
index fd3b18119c5..46410aecc2b 100644
--- a/man/uid0.xml
+++ b/man/uid0.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="uid0"
diff --git a/man/ukify.xml b/man/ukify.xml
index f991ee3c06b..659c6ed0a3f 100644
--- a/man/ukify.xml
+++ b/man/ukify.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <refentry id="ukify" xmlns:xi="http://www.w3.org/2001/XInclude" conditional='ENABLE_UKIFY'>
 
diff --git a/man/user@.service.xml b/man/user@.service.xml
index 6d0eaa4e045..819fd6feace 100644
--- a/man/user@.service.xml
+++ b/man/user@.service.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="user_.service">
diff --git a/man/userdbctl.xml b/man/userdbctl.xml
index 47f287e3f35..479893217ff 100644
--- a/man/userdbctl.xml
+++ b/man/userdbctl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="userdbctl" conditional='ENABLE_USERDB'
diff --git a/man/varlinkctl.xml b/man/varlinkctl.xml
index 7439be11b0b..77acaab0f5b 100644
--- a/man/varlinkctl.xml
+++ b/man/varlinkctl.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 
 <refentry id="varlinkctl"
diff --git a/man/vconsole.conf.xml b/man/vconsole.conf.xml
index e2e66e7fd2e..5b3524d7290 100644
--- a/man/vconsole.conf.xml
+++ b/man/vconsole.conf.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
 <!ENTITY % entities SYSTEM "custom-entities.ent" >
 %entities;
 ]>
diff --git a/man/veritytab.xml b/man/veritytab.xml
index ee88528775a..16f7491e0cb 100644
--- a/man/veritytab.xml
+++ b/man/veritytab.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 <!--
   SPDX-License-Identifier: LGPL-2.1-or-later
 
-- 
2.39.2