diff --git a/build.gradle.kts b/build.gradle.kts
index 861bbed..c2bb9ad 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,7 +4,7 @@ import groovy.lang.Closure
 import org.gradle.jvm.toolchain.internal.CurrentJvmToolchainSpec
 
 plugins {
-    kotlin("jvm") version "1.8.21"
+    kotlin("jvm") version "1.9.20"
     id("com.github.johnrengelman.shadow") version "7.1.0"
     id("com.palantir.git-version") version "0.12.3"
     id("io.github.gradle-nexus.publish-plugin") version "1.1.0"