diff --git a/src/libs/models/user.js b/src/libs/models/user.js
index 59786097b80ee35193ca2e187caabe28151f1ba0..9b9c2fa5c70bafd507f0a60a062b80efe45b4d13 100644
--- a/src/libs/models/user.js
+++ b/src/libs/models/user.js
@@ -64,7 +64,7 @@ UserSchema.pre('save', function (next) {
             if (err) {
                 return next(err);
             }
-            bcrypt.hash(user.password, salt, function (err, hash) {
+            bcrypt.hash(user.password, salt, null, function (err, hash) {
                 if (err) {
                     return next(err);
                 }