diff --git a/index.js b/index.js
index da02025..6815f90 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,7 @@
 
 module.exports = jMoment
 
-var moment = require('moment')
+var moment = require('moment-timezone')
   , jalaali = require('jalaali-js')
 
 /************************************