diff --git a/build.gradle b/build.gradle
index f91af07f..38b21d5f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,7 +18,7 @@ buildscript {
 }
 
 plugins {
-    id 'org.jetbrains.kotlin.jvm' version "1.8.10"
+    id 'org.jetbrains.kotlin.jvm' version "1.9.21"
     id 'com.diffplug.spotless' version '6.22.0' apply false
 }