diff --git a/efibuild.sh b/efibuild.sh
index ff9ddb1..6d38054 100755
--- a/efibuild.sh
+++ b/efibuild.sh
@@ -374,13 +374,13 @@ fi
 
 if [ "$NEW_BUILDSYSTEM" != "1" ]; then
   if [ "$OFFLINE_MODE" != "1" ]; then
-    updaterepo "https://github.com/acidanthera/audk" UDK master || exit 1
+    updaterepo "https://github.com/acidanthera/audk" UDK edk2-stable202305-rebase || exit 1
   else
     echo "Working in offline mode. Skip UDK update"
   fi
 fi
 cd UDK || exit 1
-HASH=$(git rev-parse origin/master)
+HASH=$(git rev-parse origin/edk2-stable202305-rebase)
 
 if [ "$DISCARD_PACKAGES" != "" ]; then 
   for package_to_discard in "${DISCARD_PACKAGES[@]}" ; do