diff --git a/package.json b/package.json
index 9e05ffe..fcb8156 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "stlite-desktop-example",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "repository": "https://github.com/whitphx/stlite-desktop-example.git",
   "author": "Yuichiro Tachibana (Tsuchiya) <t.yic.yt@gmail.com>",
   "license": "MIT",