diff --git a/package.json b/package.json
index 9ee091fa..491bc37a 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,6 @@
     "proxy": "1.0.1"
   },
   "engines": {
-    "node": ">= 4.5.0"
+    "node": ">= 6.0.0"
   }
 }