Update popper.js in docs.

diff --git a/_config.yml b/_config.yml
index fdf8d47cd8eac3cfcf15c2363d488bc22760a44f..12ddc45e97dce817b1c0c0252e89908cb8e8b2f5 100644 (file)
--- a/_config.yml
+++ b/_config.yml
@@ -57,8 +57,8 @@ cdn:
   js_bundle_hash:   "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
   jquery:           "https://code.jquery.com/jquery-3.3.1.slim.min.js"
   jquery_hash:      "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
-  popper:           "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
-  popper_hash:      "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49"
+  popper:           "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.4/umd/popper.min.js"
+  popper_hash:      "sha384-GM0Y80ecpwKxF1D5XCrGanKusGDy9WW0O2sSM84neB4iFhvKp3fwnoIRnPsQcN1R"
 
 toc:
   min_level:        2