diff --git a/docker/gz-transport/Dockerfile b/docker/gz-transport/Dockerfile
index 117cef2b1..52a0559fb 100644
--- a/docker/gz-transport/Dockerfile
+++ b/docker/gz-transport/Dockerfile
@@ -1,5 +1,5 @@
-# Ubuntu 20.04
-FROM ubuntu:focal
+# Ubuntu 22.04
+FROM ubuntu:jammy
 
 ENV TZ=America/Los_Angeles
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
diff --git a/tutorials/07_relay.md b/tutorials/07_relay.md
index 3ee5c3a11..5712b5d67 100644
--- a/tutorials/07_relay.md
+++ b/tutorials/07_relay.md
@@ -14,7 +14,7 @@ simulate this configuration, and then we'll enable the relay capabilities of
 Gazebo Transport to make the communication possible.
 
 ```{.sh}
-mkdir -p ~/gz_transport_tutorial/docker/gz-transport
+mkdir -p ~/gz_transport_tutorial/docker
 cd ~/gz_transport_tutorial/docker
 ```