diff --git a/backend/build.gradle.kts b/backend/build.gradle.kts
index 525b8e8..d562563 100644
--- a/backend/build.gradle.kts
+++ b/backend/build.gradle.kts
@@ -21,7 +21,7 @@ plugins {
     application
     kotlin("jvm")
     id("io.ktor.plugin") version "2.3.10"
-    id("org.jetbrains.kotlin.plugin.serialization") version "1.7.22"
+    id("org.jetbrains.kotlin.plugin.serialization") version "1.9.25"
     id("org.jetbrains.kotlinx.kover") version "0.7.6"
 }