diff --git a/sources/Dockerfile b/sources/Dockerfile
index 2e74a5304..d7f65b9df 100644
--- a/sources/Dockerfile
+++ b/sources/Dockerfile
@@ -22,7 +22,7 @@
 #
 # Build stage.
 #
-FROM maven:3.9.3-eclipse-temurin-17-alpine AS build
+FROM maven:3.9.4-eclipse-temurin-21-alpine AS build
 WORKDIR /app
 
 # Copy local code to the container image.