diff --git a/build.gradle.kts b/build.gradle.kts
index ef745f1..3064ef4 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -10,7 +10,7 @@ val postgresqlVersion = "42.6.0"
 
 plugins {
     kotlin("jvm") version "1.8.22"
-    kotlin("plugin.serialization") version "1.8.22"
+    kotlin("plugin.serialization") version "1.9.0"
     id("com.github.johnrengelman.shadow") version "8.1.1"
     application
 }