diff --git a/roles/xmpp_server/molecule/default/prepare.yml b/roles/xmpp_server/molecule/default/prepare.yml
index 07ddb70c3d7a1740b2bc6da05157d14f092740c6..3d61d4ddfc8793087e93803847836ac4e34d41b8 100644
--- a/roles/xmpp_server/molecule/default/prepare.yml
+++ b/roles/xmpp_server/molecule/default/prepare.yml
@@ -23,22 +23,6 @@
           fqdn:
             - ldap-server
 
-        - name: parameters-mandatory-buster_xmpp
-          fqdn:
-            - parameters-mandatory
-            - domain1
-            - proxy.domain1
-            - conference.domain1
-        - name: parameters-optional-buster_xmpp
-          fqdn:
-            - parameters-optional
-            - domain2
-            - proxy.domain2
-            - conference.domain2
-            - domain3
-            - proxy.domain3
-            - conference.domain3
-
         - name: parameters-mandatory-bullseye_xmpp
           fqdn:
             - parameters-mandatory
@@ -102,25 +86,6 @@
         mode: 0644
         state: present
 
-- hosts: buster
-  become: true
-  tasks:
-
-    - name: Set-up the hosts file
-      lineinfile:
-        path: /etc/hosts
-        regexp: "^{{ item.key }}"
-        line: "{{ item.key }} {{ item.value }}"
-        owner: root
-        group: root
-        mode: 0644
-        state: present
-      with_dict:
-        192.168.56.11: "ldap-server backup-server"
-        192.168.56.21: "client-buster"
-        192.168.56.31: "parameters-mandatory domain1 proxy.domain1 conference.domain1"
-        192.168.56.32: "parameters-optional domain2 proxy.domain2 conference.domain2 domain3 proxy.domain3 conference.domain3"
-
 - hosts: bullseye
   become: true
   tasks: