diff --git a/package-lock.json b/package-lock.json
index 61195bf..a5aa64d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@leancodepl/contractsgenerator-typescript",
-  "version": "0.4.0-alpha.0",
+  "version": "0.4.0-alpha.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@leancodepl/contractsgenerator-typescript",
-      "version": "0.4.0-alpha.0",
+      "version": "0.4.0-alpha.1",
       "license": "APACHE-2.0",
       "dependencies": {
         "@types/node": "^16.0.0",
diff --git a/package.json b/package.json
index f785ba6..a5bac55 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@leancodepl/contractsgenerator-typescript",
   "description": "LeanCode Core Library TypeScript Contracts Generator",
-  "version": "0.4.0-alpha.0",
+  "version": "0.4.0-alpha.1",
   "author": "LeanCode",
   "license": "APACHE-2.0",
   "main": "lib/index.js",