diff --git a/.github/workflows/pr_notification.yml b/.github/workflows/pr_notification.yml
index 00f27710..7c001037 100644
--- a/.github/workflows/pr_notification.yml
+++ b/.github/workflows/pr_notification.yml
@@ -2,7 +2,7 @@ name: GSI Chatroom PR Notification
 
 on:
   pull_request:
-    types: [assigned, opened, ready_for_review, reopened, review_requested]
+    types: [review_requested]
 
 jobs:
   notify-pull-request: