diff --git a/.github/workflows/pr-deploy-route-test.yml b/.github/workflows/pr-deploy-route-test.yml
index 6a4cda4d03..c5d965a78d 100644
--- a/.github/workflows/pr-deploy-route-test.yml
+++ b/.github/workflows/pr-deploy-route-test.yml
@@ -1,6 +1,9 @@
 name: PR route test
 
-on: pull_request
+# https://github.com/actions/first-interaction/issues/10#issuecomment-670968624
+# https://github.com/actions/first-interaction/issues/10#issuecomment-752360668
+on:
+- pull_request_target
 
 jobs:
   testRoute: