diff --git a/.github/workflows/pr-auto-manager.yml b/.github/workflows/pr-auto-manager.yml
index 005fa8da6..d713df8b7 100644
--- a/.github/workflows/pr-auto-manager.yml
+++ b/.github/workflows/pr-auto-manager.yml
@@ -29,6 +29,8 @@ jobs:
         # Checkout
         # https://github.com/marketplace/actions/checkout
         uses: actions/checkout@v4.2.2
+        with:
+            ref: ${{ github.head_ref }}
 
       - name: Setup Node.js
         # Setup Node.js environment