diff --git a/build.gradle.kts b/build.gradle.kts
index fd26706..26181e5 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     kotlin("jvm") version "1.9.20"
-    kotlin("plugin.serialization") version "1.9.20"
+    kotlin("plugin.serialization") version "1.9.21"
     application
 }