diff --git a/extensions/helper/Number.php b/extensions/helper/Number.php
index <HASH>..<HASH> 100644
--- a/extensions/helper/Number.php
+++ b/extensions/helper/Number.php
@@ -12,7 +12,8 @@
 
 namespace cms_core\extensions\helper;
 
-use lihtium\core\Environment;
+use lithium\core\Environment;
+use NumberFormatter;
 
 class Number extends \lithium\template\Helper {
Add missing deps to number helper.