diff --git a/roles/xmpp_server/molecule/default/group_vars/parameters-optional.yml b/roles/xmpp_server/molecule/default/group_vars/parameters-optional.yml
index d993ea545799e42a2e3e04a9c28c861fc057c99a..5b6770eeadc3e9454db6dc1e358870020abd5d27 100644
--- a/roles/xmpp_server/molecule/default/group_vars/parameters-optional.yml
+++ b/roles/xmpp_server/molecule/default/group_vars/parameters-optional.yml
@@ -27,7 +27,6 @@ backup_client_username: "bak-parameters-optional-{{ ansible_distribution_release
 backup_encryption_key: "{{ lookup('file', 'tests/data/gnupg/parameters-optional.asc') }}"
 backup_server: backup-server
 backup_server_host_ssh_public_keys:
-  - "{{ lookup('file', 'tests/data/ssh/server_dsa.pub') }}"
   - "{{ lookup('file', 'tests/data/ssh/server_rsa.pub') }}"
   - "{{ lookup('file', 'tests/data/ssh/server_ed25519.pub') }}"
   - "{{ lookup('file', 'tests/data/ssh/server_ecdsa.pub') }}"