diff --git a/server/Dockerfile b/server/Dockerfile
index 6c094c03445059e6dce7c5987a1b81af785f5efd..8ce5089e880cd2eea41693c17371892ea3271377 100644
--- a/server/Dockerfile
+++ b/server/Dockerfile
@@ -9,7 +9,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends openjdk-7-jre-h
                     unzip
 
 ENV CATTLE_HOME /var/lib/cattle
-ENV DEFAULT_CATTLE_API_UI_INDEX //releases.rancher.com/ui/0.38.0
+ENV DEFAULT_CATTLE_API_UI_INDEX //releases.rancher.com/ui/0.39.0
 ENV CATTLE_DB_CATTLE_DATABASE mysql
 ADD artifacts /usr/share/cattle
 
@@ -24,7 +24,7 @@ VOLUME ["/var/lib/mysql"]
 
 EXPOSE 8080
 ENV CATTLE_HOST_API_PROXY_MODE embedded
-ENV CATTLE_RANCHER_SERVER_IMAGE v0.31.0-rc3
+ENV CATTLE_RANCHER_SERVER_IMAGE v0.31.0-rc4
 ENV CATTLE_RANCHER_COMPOSE_VERSION beta/latest
 ENV DEFAULT_CATTLE_RANCHER_COMPOSE_LINUX_URL   https://releases.rancher.com/compose/${CATTLE_RANCHER_COMPOSE_VERSION}/rancher-compose-linux-amd64.tar.gz
 ENV DEFAULT_CATTLE_RANCHER_COMPOSE_DARWIN_URL  https://releases.rancher.com/compose/${CATTLE_RANCHER_COMPOSE_VERSION}/rancher-compose-darwin-amd64.tar.gz