diff --git a/.github/workflows/contributing.yaml b/.github/workflows/contributing.yaml
index 32ec9c41..20d0a50b 100644
--- a/.github/workflows/contributing.yaml
+++ b/.github/workflows/contributing.yaml
@@ -10,7 +10,5 @@ on:
 jobs:
   validate-existing-contributors:
     uses: ocadotechnology/codeforlife-workspace/.github/workflows/validate-existing-contributors.yaml@validate_existing_contributor # TODO: set to @main
-    with:
-      prod-branch: ${{ github.base_ref }} # TODO: set to main after we merge new_data_models into main
     secrets:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}