diff --git a/.github/workflows/deploy-ui.yml b/.github/workflows/deploy-ui.yml
index 58fcf561..2751e939 100644
--- a/.github/workflows/deploy-ui.yml
+++ b/.github/workflows/deploy-ui.yml
@@ -49,6 +49,7 @@ jobs:
       - name: Deploy to Cloudflare Workers
         uses: cloudflare/wrangler-action@v3
         with:
+          wranglerVersion: '4'
           apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
           accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
           workingDirectory: ui