diff --git a/.autod.conf.js b/.autod.conf.js
index 0b4e25f..5c2c05d 100644
--- a/.autod.conf.js
+++ b/.autod.conf.js
@@ -8,7 +8,6 @@ module.exports = {
     'benchmark',
   ],
   devdep: [
-    'egg',
     'egg-ci',
     'egg-bin',
     'autod',
diff --git a/.travis.yml b/.travis.yml
index 1e455dc..960bc57 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,8 @@
 sudo: false
 language: node_js
 node_js:
-  - '6'
-  - '7'
   - '8'
+  - '9'
 install:
   - npm i npminstall && npminstall
 script:
diff --git a/app/extend/application.js b/app/extend/application.js
index e2109e5..e702515 100644
--- a/app/extend/application.js
+++ b/app/extend/application.js
@@ -50,21 +50,21 @@ module.exports = {
       throw err;
     }
 
-    return function* jsonp(next) {
-      const jsonpFunction = getJsonpFunction(this.query, options.callback);
+    return async function jsonp(ctx, next) {
+      const jsonpFunction = getJsonpFunction(ctx.query, options.callback);
 
-      this[JSONP_CONFIG] = {
+      ctx[JSONP_CONFIG] = {
         jsonpFunction,
         options,
       };
 
       // before handle request, must do some security checks
-      securityAssert(this);
+      securityAssert(ctx);
 
-      yield next;
+      await next();
 
       // generate jsonp body
-      this.createJsonpBody(this.body);
+      ctx.createJsonpBody(ctx.body);
     };
   },
 };
diff --git a/appveyor.yml b/appveyor.yml
index 698d8f9..d0aa47e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,8 +1,7 @@
 environment:
   matrix:
-    - nodejs_version: '6'
-    - nodejs_version: '7'
     - nodejs_version: '8'
+    - nodejs_version: '9'
 
 install:
   - ps: Install-Product node $env:nodejs_version
diff --git a/package.json b/package.json
index 09ee876..be9cdd9 100644
--- a/package.json
+++ b/package.json
@@ -24,18 +24,18 @@
     "jsonp-body": "^1.0.0"
   },
   "devDependencies": {
-    "autod": "^2.9.0",
-    "egg": "^1.8.0",
-    "egg-bin": "^4.3.2",
+    "autod": "^2.10.1",
+    "egg": "next",
+    "egg-bin": "^4.3.5",
     "egg-ci": "^1.8.0",
-    "egg-mock": "^3.12.1",
-    "eslint": "^4.7.1",
+    "egg-mock": "^3.13.1",
+    "eslint": "^4.10.0",
     "eslint-config-egg": "^5.1.1",
     "supertest": "^3.0.0",
     "webstorm-disable-index": "^1.2.0"
   },
   "engines": {
-    "node": ">=6.0.0"
+    "node": ">=8.0.0"
   },
   "scripts": {
     "test": "npm run lint -- --fix && npm run test-local",
@@ -46,7 +46,7 @@
     "autod": "autod"
   },
   "ci": {
-    "version": "6, 7, 8"
+    "version": "8, 9"
   },
   "repository": {
     "type": "git",
diff --git a/test/fixtures/jsonp-test/app/controller/jsonp.js b/test/fixtures/jsonp-test/app/controller/jsonp.js
index 7deeef8..5fde79f 100644
--- a/test/fixtures/jsonp-test/app/controller/jsonp.js
+++ b/test/fixtures/jsonp-test/app/controller/jsonp.js
@@ -1,16 +1,16 @@
 'use strict';
 
-exports.index = function*() {
-  this.body = { foo: 'bar' };
+exports.index = ctx => {
+  ctx.body = { foo: 'bar' };
 };
 
 exports.empty = function*() {};
 
 
-exports.mark = function*() {
-  this.body = { jsonpFunction: this.acceptJSONP };
+exports.mark = ctx => {
+  ctx.body = { jsonpFunction: ctx.acceptJSONP };
 };
 
-exports.error = function*() {
+exports.error = async () => {
   throw new Error('jsonpFunction is error');
-};
\ No newline at end of file
+};
diff --git a/test/jsonp.test.js b/test/jsonp.test.js
index 1bf8aa7..8034496 100644
--- a/test/jsonp.test.js
+++ b/test/jsonp.test.js
@@ -1,6 +1,5 @@
 'use strict';
 
-const request = require('supertest');
 const mm = require('egg-mock');
 
 describe('test/jsonp.test.js', () => {
@@ -16,55 +15,55 @@ describe('test/jsonp.test.js', () => {
   afterEach(mm.restore);
 
   it('should support json', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/default')
       .expect(200)
       .expect({ foo: 'bar' });
   });
 
   it('should support jsonp', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/default?callback=fn')
       .expect(200)
       .expect('/**/ typeof fn === \'function\' && fn({"foo":"bar"});');
   });
 
   it('should support _callback', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/default?_callback=fn')
       .expect(200)
       .expect('/**/ typeof fn === \'function\' && fn({"foo":"bar"});');
   });
 
   it('should support jsonp if response is empty', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/empty?callback=fn')
       .expect(200)
       .expect('/**/ typeof fn === \'function\' && fn(null);');
   });
 
   it('should not support jsonp if not use jsonp middleware', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/disable?_callback=fn')
       .expect(200)
       .expect({ foo: 'bar' });
   });
 
   it('should not support cutom callback name', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/fn?fn=fn')
       .expect(200)
       .expect('/**/ typeof fn === \'function\' && fn({"foo":"bar"});');
   });
 
   it('should not pass csrf', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/csrf')
       .expect(403);
   });
 
   it('should pass csrf with cookie', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/csrf')
       .set('cookie', 'csrfToken=token;')
       .set('x-csrf-token', 'token')
@@ -73,7 +72,7 @@ describe('test/jsonp.test.js', () => {
   });
 
   it('should pass csrf with cookie and support jsonp', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/csrf')
       .set('cookie', 'csrfToken=token;')
       .set('x-csrf-token', 'token')
@@ -82,25 +81,25 @@ describe('test/jsonp.test.js', () => {
   });
 
   it('should pass referrer white list check with subdomain', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/subdomain')
       .set('referrer', 'http://test.com/')
       .expect(200)
       .expect({ foo: 'bar' });
 
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/subdomain')
       .set('referrer', 'http://sub.test.com/')
       .expect(200)
       .expect({ foo: 'bar' });
 
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/subdomain')
       .set('referrer', 'https://sub.sub.test.com/')
       .expect(200)
       .expect({ foo: 'bar' });
 
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/subdomain')
       .set('referrer', 'https://sub.sub.test1.com/')
       .expect(403)
@@ -108,25 +107,25 @@ describe('test/jsonp.test.js', () => {
   });
 
   it('should pass referrer white list with domain', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/equal')
       .set('referrer', 'http://test.com/')
       .expect(200)
       .expect({ foo: 'bar' });
 
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/equal')
       .set('referrer', 'https://test.com/')
       .expect(200)
       .expect({ foo: 'bar' });
 
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/equal')
       .set('referrer', 'https://sub.sub.test.com/')
       .expect(403)
       .expect(/jsonp request security validate failed/);
 
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/equal')
       .set('referrer', 'https://sub.sub.test1.com/')
       .expect(403)
@@ -134,25 +133,25 @@ describe('test/jsonp.test.js', () => {
   });
 
   it('should pass referrer white array and regexp', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/regexp')
       .set('referrer', 'http://test.com/')
       .expect(200)
       .expect({ foo: 'bar' });
 
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/regexp')
       .set('referrer', 'https://foo.com/')
       .expect(200)
       .expect({ foo: 'bar' });
 
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/regexp')
       .set('referrer', 'https://sub.sub.test.com/')
       .expect(403)
       .expect(/jsonp request security validate failed/);
 
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/referrer/regexp')
       .set('referrer', 'https://sub.sub.test1.com/')
       .expect(403)
@@ -160,7 +159,7 @@ describe('test/jsonp.test.js', () => {
   });
 
   it('should pass when pass csrf but not hit referrer white list', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/both')
       .set('cookie', 'csrfToken=token;')
       .set('x-csrf-token', 'token')
@@ -169,7 +168,7 @@ describe('test/jsonp.test.js', () => {
   });
 
   it('should pass when not pass csrf but hit referrer white list', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/both')
       .set('referrer', 'https://test.com/')
       .expect(200)
@@ -177,14 +176,14 @@ describe('test/jsonp.test.js', () => {
   });
 
   it('should 403 when not pass csrf and not hit referrer white list', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/both')
       .expect(403)
       .expect(/jsonp request security validate failed/);
   });
 
   it('should 403 when not pass csrf and referrer illegal', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/both')
       .set('referrer', '/hello')
       .expect(403)
@@ -192,21 +191,21 @@ describe('test/jsonp.test.js', () => {
   });
 
   it('should pass and return is a jsonp function', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/mark?_callback=fn')
       .expect(200)
       .expect('/**/ typeof fn === \'function\' && fn({"jsonpFunction":true});');
   });
 
   it('should pass and return is not a jsonp function', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/mark')
       .expect(200)
       .expect({ jsonpFunction: false });
   });
 
   it('should pass and return error message', function* () {
-    yield request(app.callback())
+    yield app.httpRequest()
       .get('/error?_callback=fn')
       .expect(200)
       .expect('/**/ typeof fn === \'function\' && fn({"msg":"jsonpFunction is error"});');