diff --git a/build.gradle.kts b/build.gradle.kts
index 3921c52..fc78fad 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     application
-    kotlin("jvm") version "1.8.22"
+    kotlin("jvm") version "1.9.21"
     kotlin("plugin.serialization") version "1.8.22"
 }