diff --git a/index.js b/index.js
index 356080c..cc37b41 100644
--- a/index.js
+++ b/index.js
@@ -5,10 +5,10 @@ import session from 'express-session'
 import sessionDb from 'express-session-nedb'
 import random from 'string-random'
 import formidable from 'formidable'
-import md5 from 'md5-node'
+import crypto from 'crypto'
 import HUB from './fmhub.js'
 
-
+const md5 = (str) => crypto.createHash('md5').update(str).digest('hex')
 const databases = new Map() // 所有数据库
 const FM = new HUB()        // 频道消息分发器
 const messagelist = new Map() // 消息队列的nedb存储
diff --git a/package.json b/package.json
index ed308a6..02c5a56 100644
--- a/package.json
+++ b/package.json
@@ -15,8 +15,6 @@
     "formidable": "^2.0.1",
     "interrelated": "^2.0.0-0",
     "level": "^7.0.1",
-    "md5": "^2.3.0",
-    "md5-node": "^1.0.1",
     "nedb": "^1.8.0",
     "string-random": "^0.1.3"
   },