diff --git a/daemon/build.gradle.kts b/daemon/build.gradle.kts
index d5ef22f3..a10447f7 100644
--- a/daemon/build.gradle.kts
+++ b/daemon/build.gradle.kts
@@ -4,7 +4,7 @@ import java.nio.file.Paths
 plugins {
     id("org.springframework.boot") version "3.1.2"
     id("io.spring.dependency-management") version "1.1.2"
-    kotlin("jvm") version "1.9.0"
+    kotlin("jvm") version "1.9.21"
     kotlin("plugin.spring") version "1.9.0"
     kotlin("plugin.jpa") version "1.9.0"
     id("cz.habarta.typescript-generator") version "3.2.1263"
diff --git a/demo/build.gradle.kts b/demo/build.gradle.kts
index 5fafad23..21266342 100644
--- a/demo/build.gradle.kts
+++ b/demo/build.gradle.kts
@@ -3,7 +3,7 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 plugins {
   id("org.springframework.boot") version "3.1.2"
   id("io.spring.dependency-management") version "1.1.2"
-  kotlin("jvm") version "1.9.0"
+  kotlin("jvm") version "1.9.21"
   kotlin("plugin.spring") version "1.9.0"
   id("com.gorylenko.gradle-git-properties") version "2.4.1"
 }
diff --git a/spring-client/build.gradle.kts b/spring-client/build.gradle.kts
index a65d7276..4055dd98 100644
--- a/spring-client/build.gradle.kts
+++ b/spring-client/build.gradle.kts
@@ -7,7 +7,7 @@ import java.util.*
 plugins {
   id("org.springframework.boot") version "3.1.2"
   id("io.spring.dependency-management") version "1.1.2"
-  kotlin("jvm") version "1.9.0"
+  kotlin("jvm") version "1.9.21"
   kotlin("plugin.spring") version "1.9.0"
   jacoco
   id("org.sonarqube") version "4.3.0.3225"