diff --git a/lib/js/package.json b/lib/js/package.json
index 5cdd145..e1df9f0 100644
--- a/lib/js/package.json
+++ b/lib/js/package.json
@@ -2,7 +2,7 @@
   "name": "thrift",
   "version": "1.0.0",
   "devDependencies": {
-    "grunt": "~0.4.1",
+    "grunt": "~0.4.5",
     "grunt-contrib-uglify": "~0.2.2",
     "grunt-contrib-jshint": "~0.6.3",
     "grunt-contrib-qunit": "~0.2.2",