diff --git a/package.json b/package.json
index 065f83c3..c077c6d8 100644
--- a/package.json
+++ b/package.json
@@ -44,8 +44,7 @@
   },
   "homepage": "https://github.com/amark/gun#readme",
   "engines": {
-    "node": ">=0.6.6",
-    "iojs": ">=0.0.1"
+    "node": ">=6.3.1"
   },
   "dependencies": {
     "aws-sdk": "~>2.15.0",