diff --git a/setup/functions.sh b/setup/functions.sh
index 6a96cc1f..85925e6c 100644
--- a/setup/functions.sh
+++ b/setup/functions.sh
@@ -5,7 +5,7 @@
 # -o pipefail: don't ignore errors in the non-last command in a pipeline
 set -euo pipefail
 
-PHP_VER=8.0
+PHP_VER=8.1
 
 function hide_output {
 	# This function hides the output of a command unless the command fails