diff --git a/nixos/modules/services/backup/pgbackrest.nix b/nixos/modules/services/backup/pgbackrest.nix
index d6dd7b1f04c8..6e5880ba1f90 100644
--- a/nixos/modules/services/backup/pgbackrest.nix
+++ b/nixos/modules/services/backup/pgbackrest.nix
@@ -459,6 +459,9 @@ in
             user = "postgres";
           };
         };
+        # If PostgreSQL runs on the same machine, any restore will have to be done with that user.
+        # Keeping the lock file in a directory writeable by the postgres user prevents errors.
+        services.pgbackrest.commands.restore.lock-path = "/tmp/postgresql";
         services.postgresql.identMap = ''
           postgres pgbackrest postgres
         '';
diff --git a/pkgs/by-name/pg/pgbackrest/package.nix b/pkgs/by-name/pg/pgbackrest/package.nix
index 9128586315b5..122516cbefbd 100644
--- a/pkgs/by-name/pg/pgbackrest/package.nix
+++ b/pkgs/by-name/pg/pgbackrest/package.nix
@@ -20,13 +20,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "pgbackrest";
-  version = "2.55.1";
+  version = "2.56.0";
 
   src = fetchFromGitHub {
     owner = "pgbackrest";
     repo = "pgbackrest";
     tag = "release/${finalAttrs.version}";
-    hash = "sha256-A1dTywcCHBu7Ml0Q9k//VVPFN1C3kmmMkq4ok9T4g94=";
+    hash = "sha256-GDHpeTz85cgKTbcuaTlwJ1SUNMedSylqKWdrgH8Zp8Q=";
   };
 
   strictDeps = true;