diff --git a/.github/workflows/package-chart.yml b/.github/workflows/package-chart.yml
index 28b9dad..68884b1 100644
--- a/.github/workflows/package-chart.yml
+++ b/.github/workflows/package-chart.yml
@@ -33,7 +33,7 @@ jobs:
 
       - name: Commit and Push changes
         run: |
-          git checkout ${{ github.head_ref }}
+          git checkout ${{ github.event.pull_request.head.ref }}
           git add dist/
           git add index.yaml
           git commit -m "Update Helm chart and index"