diff --git a/README.md b/README.md
index b37e396..a0fd87b 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 
 [![Quarkus](https://github.com/rogervinas/top-5-server-side-kotlin-frameworks-2022/actions/workflows/quarkus.yml/badge.svg)](https://github.com/rogervinas/top-5-server-side-kotlin-frameworks-2022/actions/workflows/quarkus.yml)
 ![Java](https://img.shields.io/badge/Java-17-blue?labelColor=black)
-![Kotlin](https://img.shields.io/badge/Kotlin-2.0.20-blue?labelColor=black)
+![Kotlin](https://img.shields.io/badge/Kotlin-2.0.21-blue?labelColor=black)
 ![Quarkus](https://img.shields.io/badge/Quarkus-2.15.3.Final-blue?labelColor=black)
 
 [![Micronaut](https://github.com/rogervinas/top-5-server-side-kotlin-frameworks-2022/actions/workflows/micronaut.yml/badge.svg)](https://github.com/rogervinas/top-5-server-side-kotlin-frameworks-2022/actions/workflows/micronaut.yml)
diff --git a/quarkus-app/build.gradle.kts b/quarkus-app/build.gradle.kts
index f265759..09a4026 100644
--- a/quarkus-app/build.gradle.kts
+++ b/quarkus-app/build.gradle.kts
@@ -4,8 +4,8 @@ import org.gradle.api.tasks.testing.logging.TestLogEvent.PASSED
 import org.gradle.api.tasks.testing.logging.TestLogEvent.SKIPPED
 
 plugins {
-  kotlin("jvm") version "2.0.20"
-  kotlin("plugin.allopen") version "2.0.20"
+  kotlin("jvm") version "2.0.21"
+  kotlin("plugin.allopen") version "2.0.21"
   id("io.quarkus")
   id("org.jlleitschuh.gradle.ktlint") version "12.1.1"
 }