diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9ab4aa9..88b3856 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,6 +27,6 @@ jobs:
         with:
             dry_run: true
             pinned_image: ${{ needs.get_config_values.outputs.pinned_image }}
-            branch_name: ${{ github.event.pull_request.head.ref }}
+            branch_name: main
             tag_format: ${{ needs.get_config_values.outputs.tag_format }}
         secrets: inherit