diff --git a/package.json b/package.json
index a3b4c53..6e87d19 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "node": ">= 0.10.0"
   },
   "devDependencies": {
-    "grunt": "~0.4.1",
+    "grunt": ">1.3.0",
     "grunt-contrib-clean": "~0.5.0",
     "grunt-contrib-jshint": "~0.6.3",
     "grunt-contrib-uglify": "~0.2.2",