diff --git a/package.json b/package.json
index 989927e..79d75e6 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "test": "grunt test"
   },
   "devDependencies": {
-    "grunt": "1.0.4",
+    "grunt": "1.5.3",
     "grunt-contrib-clean": "2.0.0",
     "grunt-contrib-copy": "1.0.0",
     "grunt-contrib-jshint": "2.1.0",