diff --git a/.github/workflows/pr-size-check.yml b/.github/workflows/pr-size-check.yml
index 215bb6cfd8..670a11587e 100644
--- a/.github/workflows/pr-size-check.yml
+++ b/.github/workflows/pr-size-check.yml
@@ -11,7 +11,7 @@
 name: PR Size Check
 
 on:
-  pull_request:
+  pull_request_target:
     types: [opened, synchronize]
 
 permissions: