diff --git a/.github/workflows/firebase-hosting-pull-request.yml b/.github/workflows/firebase-hosting-pull-request.yml
index 242bb4d1e..a46e06832 100644
--- a/.github/workflows/firebase-hosting-pull-request.yml
+++ b/.github/workflows/firebase-hosting-pull-request.yml
@@ -2,7 +2,7 @@
 # https://github.com/firebase/firebase-tools
 
 name: Deploy to Firebase Hosting on PR
-'on': pull_request
+'on': pull_request_target
 jobs:
   build_and_preview:
     if: '${{ github.event.pull_request.head.repo.full_name == github.repository }}'