diff --git a/package.json b/package.json
index 81a2a13..96b328f 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "mocha": "^2.3.3"
   },
   "peerDependencies": {
-    "grunt": "~0.4.0"
+    "grunt": ">=0.4.0"
   },
   "keywords": [
     "gruntplugin",