diff --git a/.github/workflows/test.yml b/.github/workflows/update.yml
similarity index 92%
rename from .github/workflows/test.yml
rename to .github/workflows/update.yml
index f49c3e8..3a59623 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/update.yml
@@ -33,6 +33,9 @@ jobs:
       - name: Update dir
         run: python ./update.py
 
+      - name: Create CNAME file
+        run: echo 'helper.bjutswift.cn' > ./docs/CNAME
+
       - name: Deploy docs
         uses: mhausenblas/mkdocs-deploy-gh-pages@master
         env: