diff --git a/package.json b/package.json
index 0880e23..3a55c2a 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,6 @@
     "sinon": "^4.1.1"
   },
   "engines": {
-    "node": "> 0.4.1"
+    "node": ">=4"
   }
 }