diff --git a/package.json b/package.json
index 93c0d31..9f404f3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "ergogen",
-    "version": "3.1.2",
+    "version": "4.0.0-develop",
     "description": "Ergonomic keyboard layout generator",
     "author": "Bán Dénes <mr@zealot.hu>",
     "license": "MIT",