diff --git a/pkgs/development/python-modules/btrfs/default.nix b/pkgs/development/python-modules/btrfs/default.nix
index 4715b96c9d06..88bbf17fdbfe 100644
--- a/pkgs/development/python-modules/btrfs/default.nix
+++ b/pkgs/development/python-modules/btrfs/default.nix
@@ -2,20 +2,24 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "btrfs";
   version = "15";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-FBmRT/FB3+nhb9BHfZVI1L6nM+zXdYjoy3JVzhetoQs=";
   };
 
-  # no tests (in v12)
+  build-system = [ setuptools ];
+
+  # currently no tests
   doCheck = false;
+
   pythonImportsCheck = [ "btrfs" ];
 
   meta = {