diff --git a/samples/jvm/junit5/build.gradle.kts b/samples/jvm/junit5/build.gradle.kts
index 7b786b10c2..1f85a01b53 100644
--- a/samples/jvm/junit5/build.gradle.kts
+++ b/samples/jvm/junit5/build.gradle.kts
@@ -7,7 +7,7 @@ val atriumVersion = "1.1.0"
 val junitVersion = "5.10.1"
 
 plugins {
-    kotlin("jvm") version "1.9.20"
+    kotlin("jvm") version "1.9.21"
 }
 
 group = "org.atriumlib.samples"