diff --git a/build.gradle.kts b/build.gradle.kts
index fc6509b8..77398c20 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -34,7 +34,7 @@ allprojects {
 }
 
 subprojects {
-    val javaVersion = JavaVersion.VERSION_11
+    val javaVersion = JavaVersion.VERSION_18
 
     tasks.withType<org.jetbrains.dokka.gradle.DokkaTaskPartial>().configureEach {
         dokkaSourceSets.named("main") {