diff --git a/junit-jupiter-starter-gradle-kotlin/build.gradle.kts b/junit-jupiter-starter-gradle-kotlin/build.gradle.kts
index f0797629..832ef2ec 100644
--- a/junit-jupiter-starter-gradle-kotlin/build.gradle.kts
+++ b/junit-jupiter-starter-gradle-kotlin/build.gradle.kts
@@ -2,7 +2,7 @@ import org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-	kotlin("jvm") version "2.2.20"
+	kotlin("jvm") version "2.2.21"
 }
 
 repositories {
diff --git a/junit-multiple-engines/build.gradle.kts b/junit-multiple-engines/build.gradle.kts
index 6db9f7bf..0eda6a6c 100644
--- a/junit-multiple-engines/build.gradle.kts
+++ b/junit-multiple-engines/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
     groovy
     eclipse // optional (to generate Eclipse project files)
     idea // optional (to generate IntelliJ IDEA project files)
-    kotlin("jvm") version "2.2.20"
+    kotlin("jvm") version "2.2.21"
 }
 
 repositories {