diff --git a/.github/workflows/maven-pr-builder.yml b/.github/workflows/maven-pr-builder.yml
index e7c2e1413..5553e2b8b 100644
--- a/.github/workflows/maven-pr-builder.yml
+++ b/.github/workflows/maven-pr-builder.yml
@@ -40,6 +40,7 @@ jobs:
     
     - name: Checkout Code
       uses: actions/checkout@v3
+        ref: ${{ github.event.pull_request.head.sha }}
     
     - name: Set up JDK 17
       uses: actions/setup-java@v3