diff --git a/host_vars/demompmx-postgres01-01.yml b/host_vars/demompmx-postgres01-01.yml
index cf4b320..63b2f50 100644
--- a/host_vars/demompmx-postgres01-01.yml
+++ b/host_vars/demompmx-postgres01-01.yml
@@ -4,7 +4,9 @@ server_type: "master"
 shared_service_postgres_primary: "{{ stage }}-postgres01-01"
 shared_service_postgres_secondary: "{{ stage }}-postgres01-02"
 
-postgres_pgdatadir_lvm_hcloudvol_size: 20
+postgres_backup_volume_count: 2
+postgres_backup_volume_size: 80
+postgres_pgdatadir_lvm_hcloudvol_size: 80
 postgres_pgdatadir_lvm_hcloudvol_count: 2
 
 hetzner_server_type: cpx21
diff --git a/host_vars/demompmx-postgres01-02.yml b/host_vars/demompmx-postgres01-02.yml
index 5933629..1f340d3 100644
--- a/host_vars/demompmx-postgres01-02.yml
+++ b/host_vars/demompmx-postgres01-02.yml
@@ -4,7 +4,9 @@ server_type: "slave"
 shared_service_postgres_primary: "{{ stage }}-postgres01-01"
 shared_service_postgres_secondary: "{{ stage }}-postgres01-02"
 
-postgres_pgdatadir_lvm_hcloudvol_size: 20
+postgres_backup_volume_count: 2
+postgres_backup_volume_size: 80
+postgres_pgdatadir_lvm_hcloudvol_size: 80
 postgres_pgdatadir_lvm_hcloudvol_count: 2
 
 hetzner_server_type: cpx21