diff --git a/.travis.yml b/.travis.yml
index d644cb5..6e475ce 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,9 +7,9 @@ env:
     - ROLE_NAME: certbot
   matrix:
     - MOLECULE_DISTRO: centos7
-      MOLECULE_DOCKER_COMMAND: /usr/lib/systemd/systemd
     - MOLECULE_DISTRO: centos6
       MOLECULE_PLAYBOOK: playbook-source-install.yml
+    - MOLECULE_DISTRO: ubuntu1804
     - MOLECULE_DISTRO: ubuntu1604
     - MOLECULE_DISTRO: ubuntu1404
       MOLECULE_PLAYBOOK: playbook-source-install.yml
diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
index 0339702..2ca6fea 100644
--- a/molecule/default/molecule.yml
+++ b/molecule/default/molecule.yml
@@ -9,8 +9,10 @@ lint:
     config-file: molecule/default/yaml-lint.yml
 platforms:
   - name: instance
-    image: geerlingguy/docker-${MOLECULE_DISTRO:-centos7}-ansible
-    command: ${MOLECULE_DOCKER_COMMAND:-"sleep infinity"}
+    image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos7}-ansible:latest"
+    command: ${MOLECULE_DOCKER_COMMAND:-""}
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
     privileged: true
     pre_build_image: true
 provisioner: