diff --git a/.github/workflows/lint-migrations.yml b/.github/workflows/lint-migrations.yml
index c1587f696..00350abcd 100644
--- a/.github/workflows/lint-migrations.yml
+++ b/.github/workflows/lint-migrations.yml
@@ -10,11 +10,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1
+      - name: Fetch main branch
+        run: git fetch origin main:main
       - name: Find modified migrations
         run: |
-          modified_migrations=$(git diff --diff-filter=d --name-only origin/$GITHUB_BASE_REF...origin/$GITHUB_HEAD_REF 'packages/db/migrations/*.do.*.sql')
+          modified_migrations=$(git diff --diff-filter=d --name-only main 'packages/db/migrations/*.do.*.sql')
           echo "$modified_migrations"
-          echo "::set-output name=file_names::$modified_migrations"
+          echo "file_names=$modified_migrations" >> $GITHUB_OUTPUT
         id: modified-migrations
       - uses: sbdchd/squawk-action@v1
         with: