diff --git a/README.rst b/README.rst
index 35579d9..785fec4 100644
--- a/README.rst
+++ b/README.rst
@@ -20,6 +20,12 @@ including Jenkins and Zuul.
 Requirements
 ------------
 
+Packages
+~~~~~~~~
+
+Package repository index files should be up to date before using this role, we
+do not manage them.
+
 Role Variables
 --------------
 
diff --git a/tests/test.yaml b/tests/test.yaml
index 81dab81..5fa16b8 100644
--- a/tests/test.yaml
+++ b/tests/test.yaml
@@ -13,7 +13,15 @@
 # under the License.
 ---
 - hosts: localhost
+  sudo: yes
   vars:
     rolename: "{{ lookup('pipe', 'pwd') | dirname | basename }}"
+  pre_tasks:
+    # Make sure OS does not have a stale package cache.
+    - name: Update apt cache.
+      apt:
+        update_cache: yes
+      when: ansible_os_family == 'Debian'
+
   roles:
     - "{{ rolename }}"