1 files changed, 7 insertions, 3 deletions
diff --git a/lib/letter-avatars.js b/lib/letter-avatars.js
index 55cf9c3a..7d463950 100644
--- a/lib/letter-avatars.js
+++ b/lib/letter-avatars.js
@@ -1,6 +1,6 @@
 'use strict'
 // external modules
-const md5 = require('blueimp-md5')
+const crypto = require('crypto')
 const randomcolor = require('randomcolor')
 const config = require('./config')
 
@@ -31,15 +31,19 @@ exports.generateAvatarURL = function (name, email = '', big = true) {
     email = '' + name + '@example.com'
   }
 
+  let hash = crypto.createHash('md5')
+  hash.update(email.toLowerCase())
+  let hexDigest = hash.digest('hex')
+
   if (email !== '' && config.allowGravatar) {
-    photo = 'https://www.gravatar.com/avatar/' + md5(email.toLowerCase())
+    photo = 'https://www.gravatar.com/avatar/' + hexDigest;
     if (big) {
       photo += '?s=400'
     } else {
       photo += '?s=96'
     }
   } else {
-    photo = config.serverURL + '/user/' + (name || email.substring(0, email.lastIndexOf('@')) || md5(email.toLowerCase())) + '/avatar.svg'
+    photo = config.serverURL + '/user/' + (name || email.substring(0, email.lastIndexOf('@')) || hexDigest) + '/avatar.svg'
   }
   return photo
 }