diff --git a/lib/controller.js b/lib/controller.js
index 5544fad..f12b372 100644
--- a/lib/controller.js
+++ b/lib/controller.js
@@ -10,7 +10,7 @@
 const smarty = new libs.Smarty()
 const jwt = require('./module/jwt')
 
-class Controller {
+export default class Controller {
   constructor({ ctx, req, res }) {
     this.ctx = ctx
     this.name = req.app
@@ -75,5 +75,3 @@ class Controller {
     this.response.append('X-debug', msg + '')
   }
 }
-
-module.exports = Controller
diff --git a/lib/middleware/cookie.js b/lib/middleware/cookie.js
index b2339c2..34a8cda 100644
--- a/lib/middleware/cookie.js
+++ b/lib/middleware/cookie.js
@@ -5,9 +5,9 @@
  * @version $Id$
  */
 
-const Cookie = require('http.cookie')
+import Cookie from 'http.cookie'
 
-module.exports = function(req, res, next) {
+export default function(req, res, next) {
   var cookie = new Cookie(req.origin.req, req.origin.res)
   var domain = this.get('domain')
   this.__INSTANCE__.cookie = function(key, val, opt) {
diff --git a/lib/middleware/credentials.js b/lib/middleware/credentials.js
index 06eb369..6bf578c 100644
--- a/lib/middleware/credentials.js
+++ b/lib/middleware/credentials.js
@@ -6,7 +6,7 @@
 
 'use strict'
 
-module.exports = function(req, res, next) {
+export default function(req, res, next) {
   var supportCredentials = this.get('supportCredentials')
   var credentialsRule = this.get('credentialsRule')
   var credentialsMaxAge = this.get('credentialsMaxAge')
diff --git a/lib/middleware/router.js b/lib/middleware/router.js
index e09e083..1ead7ae 100644
--- a/lib/middleware/router.js
+++ b/lib/middleware/router.js
@@ -6,7 +6,7 @@
  */
 'use strict'
 
-module.exports = function(req, res, next) {
+export default function(req, res, next) {
   if (!this.__MODULES__[req.app]) {
     if (!this.__MODULES__.__error__) {
       res.error(`The app [${req.app}] not found`, 404)
diff --git a/lib/middleware/session.js b/lib/middleware/session.js
index e25467b..22d6fdf 100644
--- a/lib/middleware/session.js
+++ b/lib/middleware/session.js
@@ -4,10 +4,10 @@
  * @date    2018-07-26 15:50:25
  * @version $Id$
  */
-const redisStore = require('../module/redis-store')
-const nativeStore = require('../module/native-store')
+import redisStore from '../module/redis-store'
+import nativeStore from '../module/native-store'
 
-module.exports = function(req, res, next) {
+export default function(req, res, next) {
   var opt = this.get('session')
   var jwt = this.get('jwt')
   var cookie = this.ins('cookie')
diff --git a/lib/module/jwt.js b/lib/module/jwt.js
index 64bc0c5..e5a8793 100644
--- a/lib/module/jwt.js
+++ b/lib/module/jwt.js
@@ -15,7 +15,7 @@ const sha256 = (str, secret) => {
     .replace(/=/g, '')
 }
 
-const sign = function(token) {
+export const sign = function(token) {
   // "{"typ":"JWT","alg":"HS256"}"
   // 这里固定使用sha256
   var header = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9'
@@ -31,7 +31,7 @@ const sign = function(token) {
   return `${header}.${payload}.${auth}`
 }
 
-const verify = function() {
+export const verify = function() {
   var jwt = this.request.header('authorization') || ''
   var secret = this.ctx.get('jwt')
   var auth, token, payload
@@ -56,8 +56,3 @@ const verify = function() {
   }
   return false
 }
-
-module.exports = {
-  verify,
-  sign
-}
diff --git a/lib/module/log.js b/lib/module/log.js
index baa92f0..98d5267 100644
--- a/lib/module/log.js
+++ b/lib/module/log.js
@@ -6,7 +6,7 @@
  */
 'use strict'
 
-class Log {
+export default class Log {
   constructor(file = 'run_time.log', dir) {
     if (!dir) {
       throw new Error(`agument dir must be a string, but ${typeof dir} given.`)
@@ -44,5 +44,3 @@ class Log {
     )
   }
 }
-
-module.exports = Log
diff --git a/lib/module/native-store.js b/lib/module/native-store.js
index 09bd956..0a59f73 100644
--- a/lib/module/native-store.js
+++ b/lib/module/native-store.js
@@ -15,7 +15,7 @@ function hideProperty(host, name, value) {
   })
 }
 
-class Session {
+export default class Session {
   constructor(store, opt, uuid) {
     this.opt = opt
     this.uuid = uuid
@@ -79,5 +79,3 @@ class Session {
     this.store[this.ssid] = {}
   }
 }
-
-module.exports = Session
diff --git a/lib/module/redis-store.js b/lib/module/redis-store.js
index 1578697..d9cd12c 100644
--- a/lib/module/redis-store.js
+++ b/lib/module/redis-store.js
@@ -6,7 +6,7 @@
  */
 'use strict'
 
-class Session {
+export default class Session {
   constructor(store, opt, uuid) {
     this.store = store
     this.opt = opt
@@ -79,5 +79,3 @@ class Session {
     this.store.del(this.ssid)
   }
 }
-
-module.exports = Session
diff --git a/lib/module/sendmail.js b/lib/module/sendmail.js
index 818cda3..b851e3c 100644
--- a/lib/module/sendmail.js
+++ b/lib/module/sendmail.js
@@ -7,7 +7,7 @@
 'use strict'
 
 const mailx = require('mailx')
-class Sendmail {
+export default class Sendmail {
   constructor({ host, port, mail, passwd } = {}) {
     if (!host || !port || !mail || !passwd) {
       throw new Error('smtp options [host, port, mail, passwd] is required.')
@@ -44,5 +44,3 @@ class Sendmail {
     return defer.promise
   }
 }
-
-module.exports = Sendmail
diff --git a/lib/reg-init.js b/lib/reg-init.js
index 38419e1..d29b017 100644
--- a/lib/reg-init.js
+++ b/lib/reg-init.js
@@ -7,7 +7,7 @@
 
 'use strict'
 
-const init = {
+export default {
   db: {},
   session: {
     type: 'native', // native 或 redis
@@ -48,5 +48,3 @@ const init = {
     qq: /^\d{5,12}$/
   }
 }
-
-module.exports = init
diff --git a/package.json b/package.json
index 665f40d..ae54601 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
   "main": "index.js",
   "dependencies": {
     "crypto.js": "^1.3.1",
-    "es.shim": "^1.1.2",
+    "@bytedo/es.shim": "^1.0.0",
     "iofs": "^1.3.2",
     "mysqli": "^3.0.11",
     "http.request": "^1.1.0",
@@ -20,11 +20,11 @@
   "devDependencies": {},
   "repository": {
     "type": "git",
-    "url": "https://github.com/yutent/five.git"
+    "url": "https://github.com/bytedo/gmf.core.git"
   },
   "keywords": ["five, fivejs, node-five, five.js, nodejs, mvc, koa, express"],
   "engines": {
-    "node": ">=8.0.0"
+    "node": ">=10.0.0"
   },
   "license": "MIT"
 }