diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index db66218d..79931aa7 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -91,11 +91,12 @@ jobs:
         uses: actions/configure-pages@v4
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: 'fleximg/demo/web'
 
   deploy:
+    if: github.ref == 'refs/heads/main'
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}