diff --git a/Dockerfile b/Dockerfile
index a40998a..80226d7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM openjdk:17.0.2-jdk-slim
+FROM openjdk:21-jdk-slim
 COPY target/*.jar app.jar
 EXPOSE 8080
 ENTRYPOINT ["java", "-jar", "/app.jar"]