diff --git a/settings.gradle b/settings.gradle
index 422716fd..3f0e9b84 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,6 +1,6 @@
 pluginManagement {
     plugins {
-        String kotlinVersion = "1.8.22"
+        String kotlinVersion = "1.9.21"
         id 'org.jetbrains.kotlin.jvm' version kotlinVersion apply false
         id 'com.avast.gradle.docker-compose' version "0.17.5" apply false
         id 'io.gitlab.arturbosch.detekt' version "1.23.1" apply false