diff --git a/package.json b/package.json
index c1cfcd6e..b8d4acd9 100644
--- a/package.json
+++ b/package.json
@@ -52,10 +52,10 @@
   "devDependencies": {
     "grunt": "^1.0.1",
     "grunt-cli": "^1.2.0",
-    "grunt-contrib-clean": "^1.0.0",
+    "grunt-contrib-clean": "^1.1.0",
     "grunt-contrib-concat": "^1.0.1",
     "grunt-contrib-copy": "^1.0.0",
-    "grunt-contrib-cssmin": "^2.0.0",
+    "grunt-contrib-cssmin": "^2.1.0",
     "grunt-contrib-jshint": "^1.1.0",
     "grunt-contrib-qunit": "^2.0.0",
     "grunt-contrib-uglify": "^2.3.0",