diff --git a/cosid-proxy-server/Dockerfile b/cosid-proxy-server/Dockerfile
index 42a5870b5f..244f48a4f8 100644
--- a/cosid-proxy-server/Dockerfile
+++ b/cosid-proxy-server/Dockerfile
@@ -5,7 +5,7 @@
 ARG APP_NAME=cosid-proxy-server
 ARG WORK_HOME=/opt/${APP_NAME}
 
-FROM openjdk:17.0.2-jdk-slim AS base
+FROM openjdk:21-jdk-slim AS base
 
 FROM base as build
 ARG WORK_HOME