diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index e3ecf923f..285c2ded8 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -1,7 +1,9 @@
 name: "Pull Request Labeler"
-on:
-- pull_request_target
 
+on:
+  pull_request:
+    branches:
+      - 'master'
 jobs:
   labeler:
     permissions: