diff --git a/build.gradle.kts b/build.gradle.kts
index 49fc226..2f16756 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -22,7 +22,7 @@ import com.codingfeline.buildkonfig.compiler.FieldSpec.Type.STRING
  */
 
 plugins {
-    val kotlinVersion = "2.2.20"
+    val kotlinVersion = "2.2.21"
     kotlin("multiplatform") version kotlinVersion
     kotlin("plugin.serialization") version kotlinVersion
     id("com.codingfeline.buildkonfig") version "0.17.1"