codereview.cfg | 3 ++-

diff --git a/codereview.cfg b/codereview.cfg
index 77a74f108eae362626abcdbfcf41ddb9a33b02cd..f5b11bd672f312bc3f37774fe29b44130b1ba309 100644
--- a/codereview.cfg
+++ b/codereview.cfg
@@ -1 +1,2 @@
-branch: master
+branch: release-branch.go1.21
+parent-branch: master