diff --git a/package.json b/package.json
index f106be13..5149ee0f 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "license": "MIT",
   "devDependencies": {
     "grunt": "~0.4.0",
-    "grunt-contrib-concat": "~0.1.3",
-    "grunt-contrib-uglify": "~0.1.2"
+    "grunt-contrib-uglify": "~0.9.2",
+    "grunt-contrib-concat": "~0.1.3"
   }
 }