diff --git a/code-serverx/Dockerfile b/code-serverx/Dockerfile
index fc6d7c2..5f61a27 100644
--- a/code-serverx/Dockerfile
+++ b/code-serverx/Dockerfile
@@ -53,10 +53,10 @@ RUN apt-get update && apt-get install -y docker-ce-cli
 #    cp /tmp/docker/docker /usr/local/bin && rm -r /tmp/docker;
 
 # install maven
-RUN curl https://dlcdn.apache.org/maven/maven-3/3.9.2/binaries/apache-maven-3.9.2-bin.tar.gz | \
+RUN curl https://dlcdn.apache.org/maven/maven-3/3.9.4/binaries/apache-maven-3.9.4-bin.tar.gz | \
     tar zxv -C /usr/local/bin && \
     cd /usr/local/bin && \
-    ln -s apache-maven-3.9.2 maven 
+    ln -s apache-maven-3.9.4 maven 
 ENV PATH=$PATH:/usr/local/bin/maven/bin
 
 # install node+npm LTS see https://www.how2shout.com/linux/how-to-install-node-js-npm-on-debian-11-bullseye/
diff --git a/code-serverx/readme.md b/code-serverx/readme.md
index f0254fc..fd0d1ac 100644
--- a/code-serverx/readme.md
+++ b/code-serverx/readme.md
@@ -12,6 +12,6 @@ docker-compose up
 * openjdk-17-jdk-headless
 * BaseX 10.7
 * node+npm v16
-* maven 3.8.6
+* maven 3.9.4