diff --git a/.github/workflows/update_contributors.yml b/.github/workflows/update_contributors.yml
index f0d326c02..98537b3db 100644
--- a/.github/workflows/update_contributors.yml
+++ b/.github/workflows/update_contributors.yml
@@ -1,9 +1,6 @@
 name: Update contributors
 
-on:
-  push:
-    branches:
-      - master
+on: [push, pull_request]
 
 jobs:
   update_contributors: