Update INSTALL.md

diff --git a/INSTALL.md b/INSTALL.md
index f506b2ce02076bc26e3f7b679cb16576c54d0151..8488f1607599777db41632568f99a4834eb55439 100644 (file)
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -7,8 +7,8 @@ In the commands below, note the convention that a `#` prompt means you are in su
 ### Configure and Update
 Do the usual update and upgrade:
 ```
-# apt-get update
-# apt-get upgrade
+# apt update
+# apt upgrade
 # rpi-update
 ``` 
 **Note:** At this time of writing (September 2018), it is a good idea to update the Pi's firmware using `rpi-update` because a [significant improvement](https://github.com/raspberrypi/firmware/commit/200c2f4dd54b2048b5dcb8661ea3f232beb7d81e) has been made to the [timing software](https://github.com/raspberrypi/firmware/issues/1026) of the built-in audio DAC's drivers. It should be incorporated in firmware from Raspbian 4.14.66-v7 onwards.