diff --git a/build.gradle.kts b/build.gradle.kts
index 2270b74..f40d829 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -29,14 +29,14 @@ application {
 
 java {
     toolchain {
-        languageVersion.set(JavaLanguageVersion.of(11))
+        languageVersion.set(JavaLanguageVersion.of(17))
         vendor.set(JvmVendorSpec.ADOPTIUM)
     }
     withSourcesJar()
 }
 
 val compileKotlin: KotlinCompile by tasks
-compileKotlin.kotlinOptions.jvmTarget = "11"
+compileKotlin.kotlinOptions.jvmTarget = "17"
 
 val gitVersion: groovy.lang.Closure<String> by extra