diff --git a/roles/web_server/molecule/default/prepare.yml b/roles/web_server/molecule/default/prepare.yml
index 3f13685a2cafc390d2cf277574486083eb3471fb..dffe21c6d93ef33aa1ca1236319e311f826b9b26 100644
--- a/roles/web_server/molecule/default/prepare.yml
+++ b/roles/web_server/molecule/default/prepare.yml
@@ -2,24 +2,24 @@
 
 - name: Prepare
   hosts: all
-  gather_facts: False
+  gather_facts: false
   tasks:
     - name: Install python for Ansible
       raw: test -e /usr/bin/python || (apt -y update && apt install -y python-minimal)
-      become: True
-      changed_when: False
+      become: true
+      changed_when: false
 
 - hosts: all
-  become: yes
+  become: true
   tasks:
 
     - name: Update all caches to avoid errors due to missing remote archives
       apt:
-        update_cache: yes
-      changed_when: False
+        update_cache: true
+      changed_when: false
 
 - hosts: all
-  become: yes
+  become: true
   tasks:
 
     - name: Set-up the hosts file
@@ -39,21 +39,21 @@
     - name: Install curl for testing redirects and webpage content
       apt:
         name: curl
-        state: installed
+        state: present
 
 - hosts: client1
-  become: yes
+  become: true
   tasks:
 
     - name: Install tool for testing TCP connectivity
       apt:
         name: hping3
-        state: installed
+        state: present
 
     - name: Install console-based web browser for interactive testing
       apt:
         name: lynx
-        state: installed
+        state: present
 
     - name: Deploy CA certificate
       copy: