diff --git a/build.gradle.kts b/build.gradle.kts
index 3322e18..eae3f0d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -20,7 +20,7 @@ plugins {
     application
     kotlin("jvm") version "2.4.20"
     id("io.ktor.plugin") version "3.6.0"
-    id("org.jetbrains.kotlin.plugin.serialization") version "2.4.20"
+    id("org.jetbrains.kotlin.plugin.serialization") version "2.4.21"
     id("io.gitlab.arturbosch.detekt") version "1.23.8"
 }