diff --git a/ApiDemos/kotlin/build.gradle b/ApiDemos/kotlin/build.gradle
index b5831560..682b35b9 100644
--- a/ApiDemos/kotlin/build.gradle
+++ b/ApiDemos/kotlin/build.gradle
@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.8.20'
+    ext.kotlin_version = '1.8.21'
     repositories {
         google()
         mavenCentral()