diff --git a/README.md b/README.md
index cd6debd..e9db29e 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 
 ## 技术栈
 
-- **Java 25**
+- **Java 21**
 - **Maven** 构建
 - **Apache Commons Compress 1.28.0**（压缩功能依赖）
 - **JUnit Jupiter 5.13.0**（测试框架）
diff --git a/pom.xml b/pom.xml
index dd32bf5..16e110c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
     </licenses>
 
     <properties>
-        <maven.compiler.release>25</maven.compiler.release>
+        <maven.compiler.release>21</maven.compiler.release>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <junit.version>5.13.0</junit.version>
         <surefire.version>3.6.0</surefire.version>
diff --git a/src/main/java/top/gtb520/java/gnu/java/utils/library/version.java b/src/main/java/top/gtb520/java/gnu/java/utils/library/version.java
index 6f05c81..9544487 100644
--- a/src/main/java/top/gtb520/java/gnu/java/utils/library/version.java
+++ b/src/main/java/top/gtb520/java/gnu/java/utils/library/version.java
@@ -4,10 +4,10 @@ public class version {
     // 项目的版本信息，不代表实时运行环境
     // 与 pom.xml 保持一致；构建 JAR 时优先读取 MANIFEST 的 Implementation-Version
     public static final String VERSION = "1.7";
-    public static final String JAVA_VERSION = "25";
-    public static final String OpenJDK_VERSION = "25.0.0.0.1";
-    public static final String OpenJDK_Runtime_Environment = "25.0.0.0.1+36-GA";
-    public static final String OpenJDK_64Bit_Server_VM = "25.0.0.0.1+36-GA";
+    public static final String JAVA_VERSION = "21";
+    public static final String OpenJDK_VERSION = "21";
+    public static final String OpenJDK_Runtime_Environment = "21+35-2513";
+    public static final String OpenJDK_64Bit_Server_VM = "21+35-2513";
 
     public String GetVersion() {
         // 打包为 JAR 时读取 MANIFEST 中的 Implementation-Version，类路径运行（如测试）时回退到常量