diff --git a/README.md b/README.md
index f9a43847..0ff32b59 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,8 @@
 
 仅支持 `Paper` 及其下游如 (`Purpur`) 核心，所有测试均在 `Purpur` 进行，因此 `Purpur` 的兼容性最高
 
+要求使用 JAVA 21 及以上
+
 + 支持 `1.20`, `1.20.2`, `1.20.3`, `1.20.4`, `1.20.5`, `1.20.6`
 + 支持 `1.21`
 
diff --git a/README_en.md b/README_en.md
index c7167049..0e76ec81 100644
--- a/README_en.md
+++ b/README_en.md
@@ -8,6 +8,8 @@ This plugin can help you to spawn fake players, with them, you can keep chunk lo
 
 Only supports `Paper` and derivatives like (`Purpur`).
 
+Required JAVA 21+
+
 + supports `1.20`, `1.20.2`, `1.20.3`, `1.20.4`, `1.20.5`, `1.20.6`
 + supports `1.21`