diff --git a/build.gradle.kts b/build.gradle.kts
index 393666e..b3cc48a 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     kotlin("jvm") version "1.9.0" apply false
-    kotlin("plugin.serialization") version "1.8.20" apply false
+    kotlin("plugin.serialization") version "1.9.20" apply false
 }
 
 allprojects {