--- a/package.json
+++ b/package.json
@@ -30,13 +30,7 @@
     "grunt": "0.4.5",
     "grunt-babel": "5.0.1",
     "grunt-cli": "0.1.13",
-    "grunt-compare-size": "0.4.0",
-    "grunt-contrib-jshint": "0.11.2",
     "grunt-contrib-uglify": "0.9.2",
-    "grunt-contrib-watch": "0.6.1",
-    "grunt-git-authors": "2.0.1",
-    "grunt-jscs": "2.1.0",
-    "grunt-jsonlint": "1.0.4",
     "grunt-npmcopy": "0.1.0",
     "gzip-js": "0.3.2",
     "jsdom": "5.6.1",