diff --git a/tools/config.sh b/tools/config.sh
index 4f17d8a1..07923a74 100755
--- a/tools/config.sh
+++ b/tools/config.sh
@@ -10,7 +10,7 @@ if [ -z $IDF_BRANCH ]; then
 fi
 
 if [ -z $AR_PR_TARGET_BRANCH ]; then
-    AR_PR_TARGET_BRANCH="master"
+    AR_PR_TARGET_BRANCH="release/v3.2.x"
 fi
 
 if [ -z $IDF_TARGET ]; then