diff --git a/.github/workflows/preview.yml b/.github/workflows/preview.yml
index 077ed6940..7327196b7 100644
--- a/.github/workflows/preview.yml
+++ b/.github/workflows/preview.yml
@@ -67,7 +67,7 @@ jobs:
           echo "::set-output name=url::$DEPLOY_DOMAIN"
 
       - name: Get output diff
-        run: nodejs .github/diff.js
+        run: node .github/diff.cjs
 
       - name: update status comment
         uses: actions-cool/maintain-one-comment@v2.0.0