diff --git a/Dockerfile b/Dockerfile
index 71ccbd6..6d20202 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM openjdk:17.0.2-jdk-slim
+FROM openjdk:21-jdk-slim
 EXPOSE 8080
 VOLUME /tmp
 COPY target/*.jar app.jar