diff --git a/package.json b/package.json
index 70e7a44..9ecc9ba 100644
--- a/package.json
+++ b/package.json
@@ -24,16 +24,17 @@
 
     "dependencies": {},
     "devDependencies": {
-        "grunt": "~0.4.x",
-        "grunt-contrib-jshint": "0.6.x",
-        "grunt-contrib-uglify": "0.2.x",
-        "grunt-contrib-connect": "0.3.x",
-        "grunt-contrib-yuidoc": "0.4.x",
-        "grunt-concat-sourcemap": "0.3.x",
-        "grunt-contrib-concat": "0.3.x",
-        "chai": "~1.7.0",
-        "karma": "0.11.0",
-        "karma-firefox-launcher": "0.1.0",
-        "karma-mocha": "0.1.0"
+        "grunt": "~0.4.1",
+        "grunt-contrib-jshint": "~0.6",
+        "grunt-contrib-uglify": "~0.2",
+        "grunt-contrib-connect": "~0.5",
+        "grunt-contrib-yuidoc": "~0.5",
+        "grunt-concat-sourcemap": "~0.4",
+        "grunt-contrib-concat": "~0.3",
+        "mocha": "~1.15",
+        "chai": "~1.8",
+        "karma": "~0.11",
+        "karma-firefox-launcher": "~0.1",
+        "karma-mocha": "~0.1"
     }
 }