diff --git a/build.gradle b/build.gradle
index 97418d0..4f7aca1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'org.jetbrains.kotlin.jvm' version '1.6.20'
+    id 'org.jetbrains.kotlin.jvm' version '1.9.21'
     id 'com.github.johnrengelman.shadow' version '7.1.2'
 }