diff --git a/build.gradle.kts b/build.gradle.kts
index c311738..f96ba38 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -16,7 +16,7 @@ val prometheus_version: String by project
 
 plugins {
     application
-    kotlin("jvm") version "1.8.21"
+    kotlin("jvm") version "1.9.0"
     id("io.ktor.plugin") version "2.3.1"
     id("org.jetbrains.kotlin.plugin.serialization") version "1.8.21"
     id("java")