diff --git a/Dockerfile b/Dockerfile
index bd4548c..d398e25 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -28,7 +28,7 @@
 COPY init.groovy /usr/share/jenkins/ref/init.groovy.d/tcp-slave-agent-port.groovy
 
 ENV JENKINS_VERSION 1.609.2
-ENV JENKINS_SHA 59215da16f9f8a781d185dde683c05fcf11450ef
+ENV JENKINS_SHA f5ad5f749c759da7e1a18b96be5db974f126b71e
 
 # could use ADD but this one does not check Last-Modified header 
 # see https://github.com/docker/docker/issues/8331