diff --git a/README_CN.md b/README_CN.md
index 11d002a..0480f44 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -55,7 +55,7 @@ idf.py set-target esp32s3
 ```
 
 <details>
-<summary>Ubuntu Install</summary>
+<summary>Ubuntu 安装</summary>
 
 建议基线：
 
diff --git a/README_JA.md b/README_JA.md
index 8e49e00..332e967 100644
--- a/README_JA.md
+++ b/README_JA.md
@@ -55,7 +55,7 @@ idf.py set-target esp32s3
 ```
 
 <details>
-<summary>Ubuntu Install</summary>
+<summary>Ubuntu インストール</summary>
 
 推奨ベースライン: