diff --git a/Dockerfile b/Dockerfile
index 2917076..2ba77a3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -50,10 +50,10 @@
 
 # jenkins version being bundled in this docker image
 ARG JENKINS_VERSION
-ENV JENKINS_VERSION ${JENKINS_VERSION:-2.121.3}
+ENV JENKINS_VERSION ${JENKINS_VERSION:-2.138.3}
 
 # jenkins.war checksum, download will be validated using it
-ARG JENKINS_SHA=50fbce11fa147d0ecd9ecf36cdae83ef795fb7d4776f33b5ea13bc15bf6e3c13
+ARG JENKINS_SHA=953e4dda2d3065284c0016b3e8279e097f830c128b1f712d84780ff2b0751e7d
 
 # Can be used to customize where jenkins.war get downloaded from
 ARG JENKINS_URL=https://repo.jenkins-ci.org/public/org/jenkins-ci/main/jenkins-war/${JENKINS_VERSION}/jenkins-war-${JENKINS_VERSION}.war