diff --git a/oslonokkelen-keychain-push-cli/build.gradle.kts b/oslonokkelen-keychain-push-cli/build.gradle.kts
index d574e3e..79893f1 100644
--- a/oslonokkelen-keychain-push-cli/build.gradle.kts
+++ b/oslonokkelen-keychain-push-cli/build.gradle.kts
@@ -8,7 +8,7 @@ plugins {
     application
     idea
 
-    kotlin("plugin.serialization") version "2.0.20"
+    kotlin("plugin.serialization") version "2.0.21"
     id("com.github.johnrengelman.shadow") version "8.1.1"
     id("org.graalvm.buildtools.native") version "0.10.3"
     id("org.jetbrains.kotlin.jvm")