diff --git a/README.md b/README.md
index e50863d..8eb2504 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ China大陆用户请自行优化网络。
 $ git clone https://github.com/yi-ge/koa2-API-scaffold.git
 
 $ cd mv koa2-API-scaffold
-$ npm install
+$ npm install # 安装依赖项
 $ npm run dev # 可执行npm start跳过ESlint检查。
 ```
 访问： http://127.0.0.1:3000/
diff --git a/package.json b/package.json
index 834b77b..f03f635 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "koa-multer": "^1.0.1",
     "koa-router": "^7.0.1",
     "koa-session2": "^1.0.8",
+    "koa-static2": "^0.1.8",
     "mysql": "^2.12.0",
     "nodemailer": "^2.7.2",
     "promise-mysql": "^3.0.0",