diff --git a/.github/workflows/update-lockfiles.yml b/.github/workflows/update-lockfiles.yml
index b0580ed2653cec..fc5771362895ad 100644
--- a/.github/workflows/update-lockfiles.yml
+++ b/.github/workflows/update-lockfiles.yml
@@ -4,6 +4,8 @@ on:
   pull_request:
     types:
       - labeled
+    branches:
+      - lockfile_testing
 
 env:
   GH_TOKEN: ${{ secrets.BAZEL_IO_TOKEN }}