diff --git a/update-gluon-experimental.sh b/update-gluon-experimental.sh
index 15a01d5ec71aa1a53d484dfb977c98f6241bfdd1..ccc5b50389929d551f673003a68855541b8e7b6b 100755
--- a/update-gluon-experimental.sh
+++ b/update-gluon-experimental.sh
@@ -26,7 +26,7 @@ if ! git rev-parse "$base_tag"; then
 fi
 echo Base is at "$base_tag"
 
-git fetch upstream master
+git fetch upstream main
 rebase_output=$(git rebase "$base_tag" --onto FETCH_HEAD)
 if [ "$rebase_output" = "Current branch experimental is up to date." ]; then
 	echo No changes in branch. not doing anything.