diff --git a/.github/workflows/assign-reviewer.yml b/.github/workflows/assign-reviewer.yml
index 4371cbff421..91663533e49 100644
--- a/.github/workflows/assign-reviewer.yml
+++ b/.github/workflows/assign-reviewer.yml
@@ -1,6 +1,6 @@
 name: "Auto Assign"
 on:
-  - pull_request
+  - pull_request_target
 
 jobs:
   assign_reviewer: