diff --git a/build.gradle.kts b/build.gradle.kts
index b7b882f..9266330 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -45,8 +45,8 @@ application {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
     withSourcesJar()
 }
 
@@ -69,7 +69,7 @@ val javadocJar by tasks.creating(Jar::class) {
 
 tasks {
     withType<KotlinCompile>().configureEach {
-        kotlinOptions.jvmTarget = "1.8"
+        kotlinOptions.jvmTarget = "11"
     }
 
     withType<GenerateMavenPom> {