diff --git a/History.md b/History.md
index 1163168..8f4f56f 100644
--- a/History.md
+++ b/History.md
@@ -1,3 +1,8 @@
+3.1.0 / 2019-05-09 (by Carrotzpc)
+==================
+
+  * change readme, release 3.1.0
+
 3.1.0-beta.1 / 2019-04-17 (by Carrotzpc)
 ==================
 
diff --git a/README.md b/README.md
index 233a429..cc24e63 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ GraphQl Tools 新增了对自定义 directive 的支持，通过 directive 我
 安装对应的依赖 [egg-graphql] ：
 
 ```bash
-$ npm i --save @switchdog/egg-graphql@3.1.0-beta.1
+$ npm i --save @switchdog/egg-graphql
 ```
 
 开启插件：
diff --git a/package.json b/package.json
index 69639ff..605c0ae 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@switchdog/egg-graphql",
-  "version": "3.1.0-beta.1",
+  "version": "3.1.0",
   "description": "egg graphql plugin",
   "eggPlugin": {
     "name": "graphql"