diff --git a/.github/workflows/check-urls.yml b/.github/workflows/check-urls.yml
index 188103c71c14..799b1d714a32 100644
--- a/.github/workflows/check-urls.yml
+++ b/.github/workflows/check-urls.yml
@@ -6,8 +6,9 @@
 name: Check URLs
 
 on:
-  schedule:
-    - cron: '0 4 * * 2' # Tues 4:00 AM UTC
+  pull_request:
+    branches:
+    - bugfix-2.1.x
 
 jobs:
   test_builds: