diff --git a/docs/rolereference.rst b/docs/rolereference.rst
index f29924fd837df928e4c043a36347ce26a7fe0475..212739caebb0ef37bf81facd1720a25a53e05002 100644
--- a/docs/rolereference.rst
+++ b/docs/rolereference.rst
@@ -2379,7 +2379,6 @@ Distribution compatibility
 
 Role is compatible with the following distributions:
 
-- Debian 10 (Buster)
 - Debian 11 (Bullseye)
 
 
diff --git a/roles/backup_client/defaults/main.yml b/roles/backup_client/defaults/main.yml
index 3c30b0bdb095bbc8b23f36e2a7127ed435d3f751..350a361d734f23639f116d51064070e3d7cf0ff9 100644
--- a/roles/backup_client/defaults/main.yml
+++ b/roles/backup_client/defaults/main.yml
@@ -4,8 +4,3 @@ backup_additional_encryption_keys: []
 backup_client_username: "bak-{{ ansible_fqdn | replace('.', '_') }}"
 backup_server_destination: /duplicity
 backup_server_port: 2222
-
-# Internal parameters.
-backup_client_pexpect_package:
-  buster: python-pexpect
-  bullseye: python3-pexpect
diff --git a/roles/backup_client/meta/main.yml b/roles/backup_client/meta/main.yml
index ddcbbe23400369c0ff25041f2fd87e5369914dc9..3a4f09d122c149a92ea6d49d1f1ca1c773c05a4d 100644
--- a/roles/backup_client/meta/main.yml
+++ b/roles/backup_client/meta/main.yml
@@ -8,5 +8,4 @@ galaxy_info:
   platforms:
     - name: Debian
       versions:
-        - 10
         - 11
diff --git a/roles/backup_client/molecule/default/molecule.yml b/roles/backup_client/molecule/default/molecule.yml
index 23c70f7e2d8ff4c4c31dd4e27d89b7256c81e75b..c186bd1dd28958d9db67cc12e02472823548c66b 100644
--- a/roles/backup_client/molecule/default/molecule.yml
+++ b/roles/backup_client/molecule/default/molecule.yml
@@ -29,34 +29,6 @@ platforms:
         network_name: private_network
         type: static
 
-  - name: param-mandatory-buster
-    groups:
-      - parameters-mandatory
-    box: debian/contrib-buster64
-    memory: 256
-    cpus: 1
-    provider_raw_config_args:
-      - "customize ['modifyvm', :id, '--paravirtprovider', 'minimal']"
-    interfaces:
-      - auto_config: true
-        ip: 192.168.56.20
-        network_name: private_network
-        type: static
-
-  - name: param-optional-buster
-    groups:
-      - parameters-optional
-    box: debian/contrib-buster64
-    memory: 256
-    cpus: 1
-    provider_raw_config_args:
-      - "customize ['modifyvm', :id, '--paravirtprovider', 'minimal']"
-    interfaces:
-      - auto_config: true
-        ip: 192.168.56.21
-        network_name: private_network
-        type: static
-
   - name: param-mandatory-bullseye
     groups:
       - parameters-mandatory
diff --git a/roles/backup_client/molecule/default/prepare.yml b/roles/backup_client/molecule/default/prepare.yml
index c779fe1fd9523abe1f8210e29f3dfdba4a66c0fa..51590dcd8b949bc0ae7cac593f6326e548e7c554 100644
--- a/roles/backup_client/molecule/default/prepare.yml
+++ b/roles/backup_client/molecule/default/prepare.yml
@@ -45,7 +45,7 @@
         - /etc/ssh/ssh_host_ed25519_key.pub
         - /etc/ssh/ssh_host_ecdsa_key.pub
 
-    - name: Force the use of internal-sftp subsystem fro SFTP
+    - name: Force the use of internal-sftp subsystem for SFTP
       lineinfile:
         path: /etc/ssh/sshd_config
         regexp: "^Subsystem.*sftp"
@@ -94,15 +94,12 @@
 
     - name: Change ownership of home directories for SFTP chroot to work
       file:
-        path: "{{ item }}"
+        path: "/home/{{ item.name }}"
         state: directory
         owner: root
         group: root
         mode: 0755
-      with_items:
-        - /home/backupuser
-        - /home/bak-param-mandatory-buster
-        - /home/bak-param-mandatory-bullseye
+      with_items: "{{ backup_users }}"
 
     - name: Set-up duplicity backup directories
       file:
@@ -113,17 +110,6 @@
         mode: 0770
       with_items: "{{ backup_users }}"
 
-
-    - name: Set-up directories for parameters-optional backups
-      file:
-        path: "~backupuser/duplicity/{{ item }}"
-        state: directory
-        owner: backupuser
-        group: backupuser
-        mode: 0700
-      with_items:
-        - "param-optional-buster"
-
   handlers:
     - name: Restart ssh
       service:
@@ -132,8 +118,6 @@
 
   vars:
     backup_users:
-      - name: bak-param-mandatory-buster
-        key: "{{ lookup('file', 'tests/data/ssh/parameters-mandatory.pub') }}"
       - name: bak-param-mandatory-bullseye
         key: "{{ lookup('file', 'tests/data/ssh/parameters-mandatory.pub') }}"
       - name: backupuser
diff --git a/roles/backup_client/molecule/default/tests/test_default.py b/roles/backup_client/molecule/default/tests/test_default.py
index 4e867af66c3d6c19e4e01c38f347f860c2f4dea3..0bc080eb3359f2f4a5bd129d12ec3dbb70db1751 100644
--- a/roles/backup_client/molecule/default/tests/test_default.py
+++ b/roles/backup_client/molecule/default/tests/test_default.py
@@ -14,10 +14,7 @@ def test_installed_packages(host):
 
     distribution_release = host.ansible("setup")["ansible_facts"]["ansible_distribution_release"]
 
-    if distribution_release == "buster":
-        expected_package_name = "python-pexpect"
-    else:
-        expected_package_name = "python3-pexpect"
+    expected_package_name = "python3-pexpect"
 
     assert host.package(expected_package_name).is_installed
     assert host.package('duply').is_installed
diff --git a/roles/backup_client/tasks/main.yml b/roles/backup_client/tasks/main.yml
index 5bfe3f6fd2d383227fc975711e8eead1290c3088..722030b77f096a660cb643e37c238a7c19624c3d 100644
--- a/roles/backup_client/tasks/main.yml
+++ b/roles/backup_client/tasks/main.yml
@@ -5,7 +5,7 @@
 # possible to switch to Paramiko backend.
 - name: Install pexpect for pexpect+sftp Duplicity backend
   apt:
-    name: "{{ backup_client_pexpect_package[ansible_distribution_release] }}"
+    name: python3-pexpect
     state: present
 
 - name: Install backup software