diff --git a/package.json b/package.json
index 496ff85..4f06237 100644
--- a/package.json
+++ b/package.json
@@ -37,16 +37,16 @@
   "devDependencies": {
     "bundle-collapser": "^1.1.0",
     "concat-stream": "^1.6.2",
-    "grunt": "^0.4.5",
-    "grunt-browserify": "^4.0.1",
+    "grunt": "^1.0.3",
+    "grunt-browserify": "^5.1.0",
     "grunt-connect-proxy": "^0.2.0",
     "grunt-contrib-clean": "^0.6.0",
     "grunt-contrib-connect": "^0.11.2",
     "grunt-contrib-copy": "^0.8.1",
-    "grunt-contrib-jasmine": "^1.0.3",
-    "grunt-contrib-nodeunit": "^0.4.1",
-    "grunt-contrib-uglify": "^0.9.2",
-    "grunt-contrib-watch": "^0.6.1",
+    "grunt-contrib-jasmine": "^2.0.3",
+    "grunt-contrib-nodeunit": "^2.0.0",
+    "grunt-contrib-uglify": "^0.11.1",
+    "grunt-contrib-watch": "^1.0.1",
     "grunt-dependo": "^0.1.2",
     "grunt-jasmine-nodejs": "^1.4.3",
     "grunt-markdown": "^0.7.0",