diff --git a/services/bitwarden_rs.nix b/services/bitwarden_rs.nix
index 09ca5e8..0dd8eff 100644
--- a/services/bitwarden_rs.nix
+++ b/services/bitwarden_rs.nix
@@ -36,7 +36,7 @@ in {
         '';
     };
 
-    services.postgresqlBackup = mkIf my.services.postgresql-backup.enable {
+    services.postgresqlBackup = {
       databases = [ "bitwarden_rs" ];
     };
 
diff --git a/services/default.nix b/services/default.nix
index a8891a8..a1ae911 100644
--- a/services/default.nix
+++ b/services/default.nix
@@ -14,6 +14,7 @@
     ./nextcloud.nix
     ./nginx.nix
     ./postgresql-backup.nix
+    ./postgresql.nix
     ./tgv.nix
     ./transmission.nix
     ./wireguard.nix
diff --git a/services/gitea.nix b/services/gitea.nix
index 42615b4..0f47cba 100644
--- a/services/gitea.nix
+++ b/services/gitea.nix
@@ -79,7 +79,7 @@ in {
       ];
     };
 
-    services.postgresqlBackup = mkIf my.services.postgresql-backup.enable {
+    services.postgresqlBackup = {
       databases = [ "gitea" ];
     };
 
diff --git a/services/matrix.nix b/services/matrix.nix
index 86aeefa..404774a 100644
--- a/services/matrix.nix
+++ b/services/matrix.nix
@@ -33,10 +33,9 @@ in {
   config = lib.mkIf cfg.enable {
     services.postgresql = {
       enable = true;
-      package = pkgs.postgresql_12;
     };
 
-    services.postgresqlBackup = mkIf my.services.postgresql-backup.enable {
+    services.postgresqlBackup = {
       databases = [ "matrix-synapse" ];
     };
 
diff --git a/services/miniflux.nix b/services/miniflux.nix
index 35a5fe2..297eba7 100644
--- a/services/miniflux.nix
+++ b/services/miniflux.nix
@@ -29,7 +29,7 @@ in {
   config = mkIf cfg.enable {
     # services.postgresql is automatically enabled by services.miniflux, let's
     # back it up
-    services.postgresqlBackup = mkIf my.services.postgresql-backup.enable {
+    services.postgresqlBackup = {
       databases = [ "miniflux" ];
     };
 
diff --git a/services/nextcloud.nix b/services/nextcloud.nix
index 1ab9924..8c87c6d 100644
--- a/services/nextcloud.nix
+++ b/services/nextcloud.nix
@@ -14,7 +14,6 @@ in
   };
 
   config = lib.mkIf cfg.enable {
-    # FIXME: set postgresql package globally
     services.postgresql = {
       enable = true;
 
diff --git a/services/postgresql.nix b/services/postgresql.nix
new file mode 100644
index 0000000..a6d1f05
--- /dev/null
+++ b/services/postgresql.nix
@@ -0,0 +1,7 @@
+{ config, pkgs, ... }:
+{
+  # set postgresql version so we don't get any bad surprise
+  config.services.postgresql = {
+    package = pkgs.postgresql_12;
+  };
+}