diff --git a/.github/workflows/regression-test.yml b/.github/workflows/regression-test.yml
index 0f0b9af1f..8c03f4e91 100644
--- a/.github/workflows/regression-test.yml
+++ b/.github/workflows/regression-test.yml
@@ -1,6 +1,10 @@
 name: Regression Test With Pytest
 on:
-  workflow_dispatch:
+  pull_request:
+    branches:
+      - main
+    types:
+      - review_requested
   workflow_call:
 
 jobs: