diff --git a/build.gradle.kts b/build.gradle.kts
index 87c1b77..2c351cb 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -3,7 +3,7 @@ import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-    val kotlinVersion = "2.1.20"
+    val kotlinVersion = "2.1.21"
     kotlin("jvm") version kotlinVersion
     kotlin("plugin.serialization") version kotlinVersion