diff --git a/gradle.properties b/gradle.properties
index 71acffa..36aca6d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -6,7 +6,7 @@ kotlin.incremental=true
 kotlin.incremental.js=true
 
 
-kotlin_version=2.3.20
+kotlin_version=2.3.21
 kotlin_serialisation_core_version=1.11.0
 
 github_release_plugin_version=2.5.2