diff --git a/.github/workflows/preview.yml b/.github/workflows/preview.yml
index afa04efea..e7882c8e5 100644
--- a/.github/workflows/preview.yml
+++ b/.github/workflows/preview.yml
@@ -14,6 +14,6 @@ jobs:
           surge_token: ${{ secrets.SURGE_TOKEN }}
           github_token: ${{ secrets.GITHUB_TOKEN }}
           build: |
-            npm install
+            yarn
             ./node_modules/.bin/vant-cli build-site
           dist: site