diff --git a/build.gradle b/build.gradle
index 401e67d..734eef6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,7 +10,7 @@ plugins {
 
 ext {
 
-  javaVersion=17
+  javaVersion=21
 
   version_log4j2= '2.20.0' // keep in sync with spring-boot-starter-log4j2
   version_spring = '3.1.4'