diff --git a/build.gradle b/build.gradle
index 8642c8c..0d24ce9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -21,7 +21,7 @@ apply plugin: 'eclipse'
 
 
 ext {
-  javaVersion=11
+  javaVersion=17
   version_junit = '5.9.2'
   version_junit_platform = '1.9.2'
 }
@@ -41,7 +41,7 @@ subprojects {
 	apply plugin: 'me.champeau.gradle.jmh'
 
 	// java compatibility version
-	sourceCompatibility = 11
+	sourceCompatibility = 17
 	
 	configurations {
 		tests