diff --git a/.github/workflows/autoupdate.yml b/.github/workflows/autoupdate.yml
index 37100f2..1577208 100644
--- a/.github/workflows/autoupdate.yml
+++ b/.github/workflows/autoupdate.yml
@@ -17,6 +17,8 @@ name: Auto-update PR branches
 on:
   push:
     branches: [main]
+  pull_request:
+    branches: [main]
 
 permissions:
   contents: write