diff --git a/.github/workflows/python-csup.yaml b/.github/workflows/python-csup.yaml
index 1d1218d..418be0a 100644
--- a/.github/workflows/python-csup.yaml
+++ b/.github/workflows/python-csup.yaml
@@ -4,8 +4,8 @@
 name: CSUP
 
 on:
-  schedule:
-    - cron: '10 6 * * 0'  # Runs every Sunday at 6:10 AM UTC
+  pull_request:
+    branches: [ "master" ]
 
 permissions:
   contents: read