diff --git a/README.md b/README.md
index d0902df..c09c7fb 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 [![MIT License](http://img.shields.io/badge/license-MIT-blue.svg?style=flat)](LICENSE) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT) ![GitHub release](https://img.shields.io/github/release/takkii/nyasocom_sun_pg_win.svg?style=flat) [![GitHub Status](https://img.shields.io/github/last-commit/takkii/nyasocom_sun_pg_win.svg?style=flat)](GitHub) [![rails](https://github.com/takkii/nyasocom_sun_pg_win/actions/workflows/rails.yml/badge.svg?branch=main)](https://github.com/takkii/nyasocom_sun_pg_win/actions/workflows/rails.yml)
 
-### にゃそこん参ぴーじーうぃん / [youtube_動画マニュアル_実環境編](https://youtu.be/6Rq5Jdilko0)
+### にゃそこん参ぴーじーうぃん / [動画マニュアル_実環境編](https://youtu.be/6Rq5Jdilko0)
 
 > 2024/12/19 : 更新履歴