diff --git a/molecule/default/playbook.yml b/molecule/default/converge.yml
similarity index 100%
rename from molecule/default/playbook.yml
rename to molecule/default/converge.yml
diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
index 1c5002de..12fa23d2 100644
--- a/molecule/default/molecule.yml
+++ b/molecule/default/molecule.yml
@@ -3,8 +3,8 @@ dependency:
   name: galaxy
 driver:
   name: docker
-lint:
-  name: yamllint
+lint: |
+  yamllint .
 platforms:
   - name: instance-xenial
     image: ubuntu
@@ -20,8 +20,6 @@ provisioner:
     name: ansible-lint
   env:
     ANSIBLE_ROLES_PATH: ../../roles/
-scenario:
-  name: default
 verifier:
   name: testinfra
   lint:
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 9ff74590..993772d0 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,6 @@
 -r requirements.txt
 
-docker==3.6.0
-molecule==2.22.0
+molecule==3.3.4
+molecule-docker==0.2.4
+testinfra==3.2.1
+yamllint==1.19.0
diff --git a/requirements.txt b/requirements.txt
index 174ac68f..ec3d9fa7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-ansible==2.9.20
+ansible==4.2.0
diff --git a/roles/celery/tasks/setup_supervisor.yml b/roles/celery/tasks/setup_supervisor.yml
index 4f67fc64..0e886e8b 100644
--- a/roles/celery/tasks/setup_supervisor.yml
+++ b/roles/celery/tasks/setup_supervisor.yml
@@ -1,7 +1,14 @@
 ---
 
 - name: Ensure the Supervisor service is running
-  service: name=supervisor state=started enabled=yes
+  service:
+    name: supervisor
+    state: started
+    enabled: yes
+    # TODO: This is likely due to a bug in Ansible.
+    # Remove this line in the future.
+    # See https://github.com/ansible/ansible/issues/75005
+    use: sysvinit
 
 - name: Create the Supervisor config file for {{ celery_application_name }}
   template: src=supervisor_{{ celery_application_name }}.conf.j2
diff --git a/roles/db/tasks/main.yml b/roles/db/tasks/main.yml
index 5f7a8b16..08c56207 100644
--- a/roles/db/tasks/main.yml
+++ b/roles/db/tasks/main.yml
@@ -23,7 +23,14 @@
   tags: packages
 
 - name: Ensure the PostgreSQL service is running
-  service: name=postgresql state=started enabled=yes
+  service:
+    name: postgresql
+    state: started
+    enabled: yes
+    # TODO: This is likely due to a bug in Ansible.
+    # Remove this line in the future.
+    # See https://github.com/ansible/ansible/issues/75005
+    use: sysvinit
 
 - name: Ensure database is created
   become: true
diff --git a/roles/memcached/tasks/main.yml b/roles/memcached/tasks/main.yml
index d3789b86..2f3e7962 100644
--- a/roles/memcached/tasks/main.yml
+++ b/roles/memcached/tasks/main.yml
@@ -13,4 +13,11 @@
     - restart memcached
 
 - name: Ensure the Memcached service is running
-  service: name=memcached state=started enabled=yes
+  service:
+    name: memcached
+    state: started
+    enabled: yes
+    # TODO: This is likely due to a bug in Ansible.
+    # Remove this line in the future.
+    # See https://github.com/ansible/ansible/issues/75005
+    use: sysvinit
diff --git a/roles/nginx/tasks/main.yml b/roles/nginx/tasks/main.yml
index c4702def..9acbd042 100644
--- a/roles/nginx/tasks/main.yml
+++ b/roles/nginx/tasks/main.yml
@@ -35,4 +35,11 @@
   notify: reload nginx
 
 - name: Ensure Nginx service is started
-  service: name=nginx state=started enabled=yes
+  service:
+    name: nginx
+    state: started
+    enabled: yes
+    # TODO: This is likely due to a bug in Ansible.
+    # Remove this line in the future.
+    # See https://github.com/ansible/ansible/issues/75005
+    use: sysvinit
diff --git a/roles/rabbitmq/handlers/main.yml b/roles/rabbitmq/handlers/main.yml
index bcee0b50..4e6adfcd 100644
--- a/roles/rabbitmq/handlers/main.yml
+++ b/roles/rabbitmq/handlers/main.yml
@@ -1,4 +1,6 @@
 ---
 
 - name: restart rabbitmq-server
-  service: name=rabbitmq-server state=restarted
+  service:
+    name: rabbitmq-server
+    state: restarted
diff --git a/roles/rabbitmq/tasks/main.yml b/roles/rabbitmq/tasks/main.yml
index 2d79cc79..a7c2dd02 100644
--- a/roles/rabbitmq/tasks/main.yml
+++ b/roles/rabbitmq/tasks/main.yml
@@ -28,19 +28,20 @@
   tags:
     - packages
 
-- name: Enable the RabbitMQ Management Console
-  rabbitmq_plugin: names=rabbitmq_management state=enabled
-  notify: restart rabbitmq-server
-
 - name: Make sure rabbitmq-server is enabled and running
   service:
     name: rabbitmq-server
     state: started
     enabled: true
+    # TODO: This is likely due to a bug in Ansible.
+    # Remove this line in the future.
+    # See https://github.com/ansible/ansible/issues/75005
+    use: sysvinit
+
+- name: Enable the RabbitMQ Management Console
+  rabbitmq_plugin: names=rabbitmq_management state=enabled
+  notify: restart rabbitmq-server
 
 - include: setup_vhosts.yml
 
 - include: setup_users.yml
-
-- name: Ensure that the RabbitMQ service is running
-  service: name=rabbitmq-server state=started enabled=yes
diff --git a/roles/web/tasks/setup_supervisor.yml b/roles/web/tasks/setup_supervisor.yml
index 5735371e..2a2b40d5 100644
--- a/roles/web/tasks/setup_supervisor.yml
+++ b/roles/web/tasks/setup_supervisor.yml
@@ -1,7 +1,14 @@
 ---
 
 - name: Ensure the Supervisor service is running
-  service: name=supervisor state=started enabled=yes
+  service:
+    name: supervisor
+    state: started
+    enabled: yes
+    # TODO: This is likely due to a bug in Ansible.
+    # Remove this line in the future.
+    # See https://github.com/ansible/ansible/issues/75005
+    use: sysvinit
 
 - name: Create the Supervisor config file
   template: src=supervisor_config.j2