diff --git a/.github/workflows/molecule.yml b/.github/workflows/molecule.yml
index 02bd8c4c..8a5e1c7e 100644
--- a/.github/workflows/molecule.yml
+++ b/.github/workflows/molecule.yml
@@ -7,12 +7,12 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.6, 3.7]
+        python-version: [3.9, "3.10", 3.11]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
diff --git a/README.md b/README.md
index 5a34db83..4b0f099d 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ 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 18.04 LTS (64-bit), Ubuntu 16.04 LTS (64-bit).
+**Tested with OS:** Ubuntu 22.04 LTS (64-bit), Ubuntu 20.04 LTS (64-bit).
 
 **Tested with Cloud Providers:** [Digital Ocean][digital-ocean], [AWS][aws], [Rackspace][rackspace]
 
@@ -313,9 +313,9 @@ to run during deployment in most Django environments.
 
 ### Changing the Ubuntu release
 
-The [Vagrantfile](Vagrantfile) uses the Ubuntu 20.04 LTS Vagrant box for a
+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
-18.04 LTS instead, change the `config.vm.box` setting to `ubuntu/bionic64`.
+20.04 LTS instead, change the `config.vm.box` setting to `ubuntu/focal64`.
 
 ### Changing the Python version used by your application
 
diff --git a/Vagrantfile b/Vagrantfile
index a794fa17..6d441031 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -5,7 +5,7 @@
 VAGRANTFILE_API_VERSION = "2"
 
 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
-  config.vm.box = "ubuntu/focal64"
+  config.vm.box = "ubuntu/jammy64"
   config.ssh.forward_agent = false
   config.vm.define "my-cool-app.local", primary: true do |app|
     app.vm.hostname = "my-cool-app"
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 473bc899..4025f427 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,5 +1,5 @@
 # Use the official Ubuntu 20.04 base image from the Docker repository
-FROM ubuntu:focal
+FROM ubuntu:jammy
 
 # Allow processes to detect that they are being run in a container
 ENV container oci
diff --git a/group_vars/development/vars.yml b/group_vars/development/vars.yml
index 89c5b00b..fa1e756c 100644
--- a/group_vars/development/vars.yml
+++ b/group_vars/development/vars.yml
@@ -11,7 +11,7 @@ application_name: django_default_project
 #
 # More info here: https://launchpad.net/~fkrull/+archive/ubuntu/deadsnakes
 enable_deadsnakes_ppa: true
-virtualenv_python_version: python3.9
+virtualenv_python_version: python3.11
 
 
 # Git settings.
diff --git a/molecule/default/Dockerfile.j2 b/molecule/default/Dockerfile.j2
index 0a605536..10ffd4bb 100644
--- a/molecule/default/Dockerfile.j2
+++ b/molecule/default/Dockerfile.j2
@@ -6,7 +6,7 @@ FROM {{ item.registry.url }}/{{ item.image }}
 FROM {{ item.image }}
 {% endif %}
 
-RUN if [ $(command -v apt-get) ]; then apt-get update && apt-get install -y python sudo bash ca-certificates && apt-get clean; \
+RUN if [ $(command -v apt-get) ]; then apt-get update && apt-get install -y python python-is-python3 sudo bash ca-certificates && apt-get clean; \
     elif [ $(command -v dnf) ]; then dnf makecache && dnf --assumeyes install python sudo python-devel python2-dnf bash && dnf clean all; \
     elif [ $(command -v yum) ]; then yum makecache fast && yum install -y python sudo yum-plugin-ovl bash && sed -i 's/plugins=0/plugins=1/g' /etc/yum.conf && yum clean all; \
     elif [ $(command -v zypper) ]; then zypper refresh && zypper install -y python sudo bash python-xml && zypper clean -a; \
diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
index 6cdedcf9..3f3f61dd 100644
--- a/molecule/default/molecule.yml
+++ b/molecule/default/molecule.yml
@@ -6,11 +6,11 @@ driver:
 lint: |
   yamllint .
 platforms:
-  - name: instance-xenial
+  - name: instance-jammy
     groups:
       - vagrant
     image: ubuntu
-    image_version: xenial
+    image_version: jammy
     privileged: true
   - name: instance-focal
     groups:
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 993772d0..38981b0d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 
-molecule==3.3.4
-molecule-docker==0.2.4
-testinfra==3.2.1
+molecule==4.0.4
+molecule-docker==2.1.0
+pytest-testinfra==7.0.1
 yamllint==1.19.0