diff --git a/package.json b/package.json
index 3f6e957b..33493017 100644
--- a/package.json
+++ b/package.json
@@ -40,6 +40,8 @@
     "father-build": "^1.19.1",
     "husky": "^4.3.0",
     "lint-staged": "^10.4.0",
+    "postcss-loader": "^5.0.0",
+    "postcss": "^8.0.0",
     "vuepress": "^2.0.0-beta.22"
   },
   "lint-staged": {