diff --git a/package.json b/package.json
index fda7b9c..7c3f936 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "typedconverter",
-  "version": "1.0.0-alpha.8",
+  "version": "1.0.0-alpha.9",
   "description": "Convert object into classes match with TypeScript type annotation",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",