diff --git a/build.gradle b/build.gradle
index 3a0d20a..10e6e79 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 buildscript {
     ext.kafka_version = '3.8.0'
     ext.scala_version = '2.13'
-    ext.kotlin_version = '2.0.20'
+    ext.kotlin_version = '2.0.21'
     ext.unboundid_version = '7.0.1'
     ext.caffeine_version = '3.1.8'
     ext.jackson_version = '2.18.0'