diff --git a/howto-dapp/build.gradle b/howto-dapp/build.gradle
index e67960e4..e2a208ef 100644
--- a/howto-dapp/build.gradle
+++ b/howto-dapp/build.gradle
@@ -1,7 +1,7 @@
 plugins {
     id 'java'
     id 'com.gradleup.shadow' version '9.3.0'
-    id 'org.jetbrains.kotlin.jvm' version '2.2.20'
+    id 'org.jetbrains.kotlin.jvm' version '2.2.21'
 }
 
 group 'de.timolia.howto'