diff --git a/package.json b/package.json
index cc7292e2..bbfbe7a4 100644
--- a/package.json
+++ b/package.json
@@ -31,12 +31,12 @@
     "fs-extra": "3.0.1",
     "grunt": "0.4.5",
     "grunt-casperjs": "^2.2.1",
-    "grunt-contrib-clean": "1.0.0",
+    "grunt-contrib-clean": "1.1.0",
     "grunt-contrib-concat": "1.0.1",
     "grunt-contrib-connect": "1.0.2",
     "grunt-contrib-copy": "1.0.0",
     "grunt-contrib-jshint": "1.1.0",
-    "grunt-contrib-uglify": "1.0.1",
+    "grunt-contrib-uglify": "2.3.0",
     "grunt-contrib-watch": "1.0.0",
     "grunt-include-replace": "4.0.1",
     "grunt-jscs": "2.8.0",