diff --git a/README.md b/README.md
index 291983243..a5d69640d 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # TheUnusualSkyBlock v13
 
-![Minecraft version](https://img.shields.io/badge/version-1.21.1-blue.svg)
+![Minecraft version](https://img.shields.io/badge/version-1.21.4-blue.svg)
 ![GitHub stars](https://img.shields.io/github/stars/TUSB/TheUnusualSkyBlock.svg?style=social)
 ![Twitter Follow](https://img.shields.io/twitter/follow/TUSkyBlock.svg?style=social)
 
@@ -8,7 +8,7 @@ Minecraft 配布ワールド 「The Unusual SkyBlock」次期開発用データ
 
 公式サイト: [https://skyblock.jp/](https://skyblock.jp/)
 
-開発用 Branch 1.21.1
+開発用 Branch 1.21.4
 
 The Unusual SkyBlock  
 Copyright © 2024 [TUSB](https://skyblock.jp/) Corporation.