diff --git a/windows11.bat b/windows11.bat
index 97fb131..93f1808 100644
--- a/windows11.bat
+++ b/windows11.bat
@@ -166,7 +166,8 @@ for %%i in (!net_libs!) do (
 
 :: Java dev kits
 SET ^"java_jdk=^
-  Oracle.JavaRuntimeEnvironment EclipseAdoptium.Temurin.17.JDK"
+  Oracle.JavaRuntimeEnvironment EclipseAdoptium.Temurin.17.JDK ^
+  EclipseAdoptium.Temurin.21.JDK"
 
 ECHO JDK...
 for %%i in (!java_jdk!) do (