diff --git a/app/actions/listActions.js b/app/actions/listActions.js
index 1afd907..1bb241f 100644
--- a/app/actions/listActions.js
+++ b/app/actions/listActions.js
@@ -6,7 +6,7 @@ let storage = firebaseUtils.homeInstance().child('public').child('list');
 
 let listActions = {
     getList(list) {
-        storage.on('value', function(snapshot){
+        storage.on('value', (snapshot) => {
             AppDispatcher.handleAction({
                 actionType: appConstants.GET_DATA,
                 data: {
diff --git a/app/utils/authUtils.js b/app/utils/authUtils.js
index e314414..c0625ee 100644
--- a/app/utils/authUtils.js
+++ b/app/utils/authUtils.js
@@ -3,7 +3,7 @@ const appConstants = require('../constants/appConstants');
 let hasher = require('hasher');
 let ref = new Firebase(appConstants.FIREBASE_HOST);
 
-let addNewUserToFB = function(newUser){
+let addNewUserToFB = (newUser) => {
     ref.child('user').child(newUser.uid).child("info").set(newUser);
 };