diff --git a/package.json b/package.json
index 74c5d23..9da3c93 100644
--- a/package.json
+++ b/package.json
@@ -31,9 +31,10 @@
         "grunt-cli": ">=0.1.6"
     },
     "peerDependencies": {
-        "grunt": "~0.4.0"
+        "grunt": ">=0.4.0"
     },
     "keywords": [
-        "gruntplugin", "closure compiler"
+        "gruntplugin",
+        "closure compiler"
     ]
 }