diff --git a/package.json b/package.json
index 3ce336b..516cd7a 100644
--- a/package.json
+++ b/package.json
@@ -48,6 +48,6 @@
     "grunt-contrib-clean": "~0.5.0"
   },
   "peerDependencies": {
-    "grunt": "~0.4.1"
+    "grunt": ">=0.4.0"
   }
 }