diff --git a/package.json b/package.json
index 2fbd7bd4d..be49d189f 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     },
     "devDependencies": {
         "eslint": "^3.4.0",
-        "grunt": "~0.4.2",
+        "grunt": "~1.3.0",
         "grunt-bumpx": "~0.1.0",
         "grunt-contrib-watch": "~0.5.2",
         "grunt-docco": "~0.4.0",
@@ -40,6 +40,6 @@
         "karma-phantomjs-launcher": "^1.0.1",
         "karma-sauce-launcher": "^1.0.0",
         "mocha": "~1.15.1",
-        "uglifyjs": "latest"
+        "uglifyjs": "2.4.11"
     }
 }
\ No newline at end of file