diff --git a/package.json b/package.json
index af7fa0a..d8d6184 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "exec-sync": "~0.1.6"
   },
   "peerDependencies": {
-    "grunt": "~0.4.2",
+    "grunt": ">=0.4.0",
     "exec-sync": "~0.1.6"
   },
   "keywords": [