Pin the postgresql package

modules/services/postgresql/default.nix

@@ -11,6 +11,7 @@ in
     services.postgresql = {
       enable = true;
       enableTCPIP = true;
+      package = pkgs.postgresql_14;
       settings.listen_addresses = pkgs.lib.mkForce "127.0.0.1,172.17.0.1";
     };
     networking.firewall.extraCommands = "iptables -A INPUT -p tcp --destination-port 5432 -s 172.16.0.0/12 -j ACCEPT";

modules/services/restic-client-server-postgres/default.nix

@@ -50,7 +50,7 @@ in
           --exclude-file=${inputs.self}/modules/misc/restic-client/excludes.txt \
           --tag ${cfg.tag} ${cfg.path}
 
-        ${pkgs.sudo}/bin/sudo -u postgres ${pkgs.postgresql}/bin/pg_dumpall | \
+        ${pkgs.sudo}/bin/sudo -u postgres ${pkgs.postgresql_14}/bin/pg_dumpall | \
         ${pkgs.restic}/bin/restic backup \
           --tag postgres \
           --stdin \