diff --git a/roles/bootstrap/molecule/default/prepare.yml b/roles/bootstrap/molecule/default/prepare.yml
index f03d4f5d4175634a32df11c26577179983e34278..7f1c268a76b571a1cedb0cf1578a7267ac17c11e 100644
--- a/roles/bootstrap/molecule/default/prepare.yml
+++ b/roles/bootstrap/molecule/default/prepare.yml
@@ -2,15 +2,22 @@
 
 - name: Prepare
   hosts: all
+  become: true
   gather_facts: false
   tasks:
+
     - name: Install python for Ansible
       raw: test -e /usr/bin/python3 || (apt -y update && apt install -y python3-minimal)
-      become: true
+      changed_when: false
+
+    - name: Update all caches to avoid errors due to missing remote archives
+      apt:
+        update_cache: true
       changed_when: false
 
 # Put Ansible key into root's authorized_keys to test its removal.
-- hosts: parameters-mandatory
+- name: Prepare, text fixtures
+  hosts: parameters-mandatory
   become: true
   tasks:
 
@@ -20,7 +27,8 @@
         key: "{{ lookup('file', '~/.ssh/id_rsa.pub') }}"
 
 # Put Ansible key into root's authorized_keys to test its removal.
-- hosts: parameters-optional
+- name: Prepare, text fixtures
+  hosts: parameters-optional
   become: true
   tasks: