diff --git a/Dockerfile.template b/Dockerfile.template
index 9d6766b..7c612e5 100644
--- a/Dockerfile.template
+++ b/Dockerfile.template
@@ -25,7 +25,7 @@
 
 # could use ADD but this one does not check Last-Modified header 
 # see https://github.com/docker/docker/issues/8331
-RUN curl -L http://mirrors.jenkins-ci.org/war-stable/$JENKINS_VERSION/jenkins.war -o /usr/share/jenkins/jenkins.war
+RUN curl -L %%DOWNLOAD_URL%% -o /usr/share/jenkins/jenkins.war
 
 ENV JENKINS_UC https://updates.jenkins-ci.org
 RUN chown -R jenkins "$JENKINS_HOME" /usr/share/jenkins/ref