diff --git a/lib/utils/token-util.js b/lib/utils/token-util.js
index 0f73746bb..96d05c0de 100644
--- a/lib/utils/token-util.js
+++ b/lib/utils/token-util.js
@@ -20,7 +20,7 @@ module.exports = {
   generateRandomToken: function() {
     return randomBytes(256).then(function(buffer) {
       return crypto
-        .createHash('sha1')
+        .createHash('sha256')
         .update(buffer)
         .digest('hex');
     });