diff --git a/configurations/host/waffentrager/services/postgresql.nix b/configurations/host/waffentrager/services/postgresql.nix
index 7e0f97c..eb067f7 100644
--- a/configurations/host/waffentrager/services/postgresql.nix
+++ b/configurations/host/waffentrager/services/postgresql.nix
@@ -1,7 +1,7 @@
 { materusArg, config, lib, pkgs, ... }:
 {
   options.waffentragerService.postgresql.enable = materusArg.pkgs.lib.mkBoolOpt false "Enable postgresql";
-
+  options.waffentragerService.postgresql.version = lib.mkOption { default = "16"; };
 
   config =
     let
@@ -11,8 +11,8 @@
       waffentragerService.elements.enable = true;
 
       services.postgresql.enable = true;
-      services.postgresql.package = pkgs.postgresql_16;
-      services.postgresql.dataDir = "${config.waffentragerService.elements.postgresqlDir}/16";
+      services.postgresql.package = pkgs."postgresql_${cfg.version}";
+      services.postgresql.dataDir = "${config.waffentragerService.elements.postgresqlDir}/${cfg.version}";
       systemd.services.postgresql = {
         partOf = [ "elements-mount.service" ];
         requires = [ "elements-mount.service" ];