diff --git a/README.md b/README.md
index e420d4f..b318706 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
     - https://maven.apache.org/
     - https://gradle.org/
 - Java SDK
-    - 例えば OpenJDK
+    - 例えば Microsoft Build of OpenJDK 21
     - https://learn.microsoft.com/ja-jp/java/openjdk/download
 
 ## 実行方法