diff --git a/package.json b/package.json
index d7b65ce..2029b5c 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
   },
   "scripts": {},
   "engines": {
-    "node": ">= 0.10.0"
+    "node": "'>= 4.0.0'"
   },
   "licenses": [
     {