diff --git a/package.json b/package.json
index 46cec39..a0feb03 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "typescript-immutable-helper",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "description": "Helpers for handling immutable objects with typescript",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",