diff --git a/build.gradle.kts b/build.gradle.kts
index 24b362e..e5f97f5 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -5,7 +5,7 @@ val kotestVersion: String by project
 
 plugins {
    kotlin("jvm") version "2.1.0"
-   id("org.jetbrains.kotlin.plugin.serialization") version "2.1.0"
+   id("org.jetbrains.kotlin.plugin.serialization") version "2.1.20"
    id("jacoco")
    id("com.vanniktech.maven.publish") version "0.30.0"
 }