diff --git a/package.json b/package.json
index ff704947..07635f31 100644
--- a/package.json
+++ b/package.json
@@ -37,14 +37,15 @@
     "url-join": "0.0.1"
   },
   "devDependencies": {
-    "grunt": "~0.4.5",
-    "grunt-contrib-clean": "^0.7.0",
-    "grunt-contrib-connect": "^0.11.2",
-    "grunt-eslint": "^17.3.1",
+    "eslint": "^1.10.3",
+    "grunt": "^1.0.1",
+    "grunt-contrib-clean": "^1.0.0",
+    "grunt-contrib-connect": "^1.0.1",
+    "grunt-eslint": "^17.3.2",
     "grunt-mocha-test": "^0.12.7",
     "mocha": "^2.3.4"
   },
   "peerDependencies": {
-    "grunt": "~0.4.5"
+    "grunt": ">=0.4.0"
   }
 }