diff --git a/build.gradle b/build.gradle
index 48b865e..1950317 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.kotlin_version = '1.9.10'
+    ext.kotlin_version = '1.9.21'
     repositories {
         google()
         mavenCentral()