diff --git a/build.gradle.kts b/build.gradle.kts
index d029631..686a471 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     // Apply the Kotlin JVM plugin to add support for Kotlin.
-    kotlin("jvm") version "1.6.0"
+    kotlin("jvm") version "1.9.20"
     kotlin("plugin.serialization") version "1.5.31"
     id("com.github.johnrengelman.shadow") version "7.0.0"
     `maven-publish`