diff --git a/build.gradle.kts b/build.gradle.kts
index bf73426..612d1bb 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,5 +1,5 @@
 plugins {
-    val kotlinVersion = "1.9.20"
+    val kotlinVersion = "1.9.21"
 
     kotlin("jvm") version kotlinVersion
     kotlin("plugin.allopen") version kotlinVersion