diff --git a/package.json b/package.json
index 91710ece..e375c087 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "test": "grunt hint"
   },
   "devDependencies": {
-    "grunt": "~1.4.0",
+    "grunt": "~1.6.0",
     "grunt-autoprefixer": "^3.0.3",
     "grunt-contrib-clean": "~2.0.0",
     "grunt-contrib-concat": "~1.0.1",