diff --git a/build.gradle.kts b/build.gradle.kts
index 3cda936..3212e51 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,7 +4,7 @@ plugins {
     // Apply the Kotlin JVM plugin to add support for Kotlin.
     kotlin("jvm") version "1.9.21"
     id("org.jetbrains.dokka") version "1.9.10"
-    kotlin("plugin.serialization") version "1.9.20"
+    kotlin("plugin.serialization") version "1.9.21"
     `maven-publish`
 
     // Apply the application plugin to add support for building a jar