diff --git a/roles/backup_client/molecule/default/molecule.yml b/roles/backup_client/molecule/default/molecule.yml
index c186bd1dd28958d9db67cc12e02472823548c66b..1020d5d1f9817726e97aa4145444cabe5f9b17b7 100644
--- a/roles/backup_client/molecule/default/molecule.yml
+++ b/roles/backup_client/molecule/default/molecule.yml
@@ -17,8 +17,9 @@ lint:
 # which will easily exceed the maximum username length of 32. Yay
 # stupid legacy design decisions!
 platforms:
+
   - name: backup-server
-    box: debian/bullseye64
+    box: debian/bookworm64
     memory: 512
     cpus: 1
     provider_raw_config_args:
@@ -57,6 +58,34 @@ platforms:
         network_name: private_network
         type: static
 
+  - name: param-mandatory-bookworm
+    groups:
+      - parameters-mandatory
+    box: debian/bookworm64
+    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-bookworm
+    groups:
+      - parameters-optional
+    box: debian/bookworm64
+    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
+
 provisioner:
   name: ansible
   config_options: