diff --git a/.github/workflows/branch-guard.yml b/.github/workflows/branch-guard.yml
index b40d1d61c228..189360db423f 100644
--- a/.github/workflows/branch-guard.yml
+++ b/.github/workflows/branch-guard.yml
@@ -1,5 +1,4 @@
 on:
-  pull_request: # to update newly open PRs or when a PR is synced
   check_suite: # to update all PRs upon a Check Suite completion
     type: ['completed']