diff --git a/4_object_factory/napi/package.json b/4_object_factory/napi/package.json
index ce8cfceb..6057fb31 100644
--- a/4_object_factory/napi/package.json
+++ b/4_object_factory/napi/package.json
@@ -6,6 +6,6 @@
   "private": true,
   "gypfile": true,
   "dependencies": {
-    "bindings": "~1.2.1"
+    "bindings": "~1.5.0"
   }
 }