diff --git a/README.md b/README.md
index 371c8def..59cb8f06 100644
--- a/README.md
+++ b/README.md
@@ -4,14 +4,14 @@
 
 This middleware depends on [GraphQL.js](https://www.npmjs.com/package/graphql).
 
-```plain
-npm i graphql
+```sh
+npm i @honojs/graphql-server
 ```
 
 or
 
 ```plain
-yarn add graphql
+yarn add @honojs/graphql-server
 ```
 
 ## Usage
@@ -20,7 +20,7 @@ index.js:
 
 ```js
 import { Hono } from 'hono'
-import { graphqlServer } from 'hono/graphql-server'
+import { graphqlServer } from '@hono/graphql-server'
 import { buildSchema } from 'graphql'
 
 export const app = new Hono()
@@ -31,15 +31,17 @@ type Query {
 }
 `)
 
-const rootValue = {
-  hello: () => 'Hello Hono!',
+const rootResolver = (ctx) => {
+  return {
+    hello: () => 'Hello Hono!',
+  }
 }
 
 app.use(
   '/graphql',
   graphqlServer({
     schema,
-    rootValue,
+    rootResolver,
   })
 )
 
diff --git a/package.json b/package.json
index a53b2b5f..74fd8e18 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@honojs/graphql-server",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "repository": "git@github.com:honojs/grahql-server.git",
   "author": "Minghe Huang <h.minghe@gmail.com>",
   "main": "dist/index.js",