diff --git a/README.md b/README.md
index 4b0f099d..782702bf 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,3 @@
-
 ansible-django-stack
 ====================
 
@@ -23,7 +22,7 @@ Environment-specific settings are in the `group_vars` directory.
 A `certbot` role is also included for automatically generating and renewing
 trusted SSL certificates with [Let's Encrypt][lets-encrypt].
 
-**Tested with OS:** Ubuntu 22.04 LTS (64-bit), Ubuntu 20.04 LTS (64-bit).
+**Tested with OS:** Ubuntu 24.04 LTS (64-bit), Ubuntu 22.04 LTS (64-bit).
 
 **Tested with Cloud Providers:** [Digital Ocean][digital-ocean], [AWS][aws], [Rackspace][rackspace]
 
@@ -315,7 +314,7 @@ to run during deployment in most Django environments.
 
 The [Vagrantfile](Vagrantfile) uses the Ubuntu 22.04 LTS Vagrant box for a
 64-bit PC that is published by Canonical in HashiCorp Atlas. To use Ubuntu
-20.04 LTS instead, change the `config.vm.box` setting to `ubuntu/focal64`.
+24.04 LTS instead, change the `config.vm.box` setting to `ubuntu/noble64`.
 
 ### Changing the Python version used by your application
 
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 4025f427..0f4603b0 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-# Use the official Ubuntu 20.04 base image from the Docker repository
+# Use the official Ubuntu 22.04 base image from the Docker repository
 FROM ubuntu:jammy
 
 # Allow processes to detect that they are being run in a container
diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
index ca2bdf24..086ca405 100644
--- a/molecule/default/molecule.yml
+++ b/molecule/default/molecule.yml
@@ -15,11 +15,11 @@ platforms:
     image: ubuntu
     image_version: jammy
     privileged: true
-  - name: instance-focal
+  - name: instance-noble
     groups:
       - vagrant
     image: ubuntu
-    image_version: focal
+    image_version: noble
     privileged: true
 provisioner:
   name: ansible