diff --git a/roles/mail_server/molecule/default/group_vars/parameters-optional.yml b/roles/mail_server/molecule/default/group_vars/parameters-optional.yml
index debfa2481db1e838bdad7c44f5d712c8d64d042e..61f2866d22c853195c887f707ef4fb2ac3c37141 100644
--- a/roles/mail_server/molecule/default/group_vars/parameters-optional.yml
+++ b/roles/mail_server/molecule/default/group_vars/parameters-optional.yml
@@ -5,9 +5,7 @@ mail_ldap_url: ldap://ldap-server/
 mail_ldap_tls_truststore: "{{ lookup('file', 'tests/data/x509/ca/chain-full.cert.pem') }}"
 mail_ldap_postfix_password: postfixpassword
 mail_ldap_dovecot_password: dovecotpassword
-mail_server_tls_protocols:
-  - TLSv1.2
-  - TLSv1.1
+mail_server_minimum_tls_protocol: TLSv1.1
 mail_server_tls_ciphers: "DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-GCM-SHA384:\
 DHE-RSA-AES256-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-GCM-SHA384:\
 ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:!aNULL:!MD5:!EXPORT"