diff --git a/pkgs/development/python-modules/pytest-xprocess/default.nix b/pkgs/development/python-modules/pytest-xprocess/default.nix
index c6262b7f1e0e..bed564319450 100644
--- a/pkgs/development/python-modules/pytest-xprocess/default.nix
+++ b/pkgs/development/python-modules/pytest-xprocess/default.nix
@@ -1,30 +1,41 @@
-{ lib, buildPythonPackage, fetchPypi
+{ lib
+, buildPythonPackage
+, fetchPypi
 , psutil
+, py
 , pytest
 , setuptools-scm
 }:
 
 buildPythonPackage rec {
   pname = "pytest-xprocess";
-  version = "0.20.0";
+  version = "0.21.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-AhZ1IsTcdZ+RxKsZhUY5zR6fbgq/ynXhGWgrVB0b1j8=";
+    sha256 = "sha256-+UcL/PiE9ymetrgqQ9KYwxi45T7DFO5iTJh+DofBtEk=";
   };
 
-  nativeBuildInputs = [ setuptools-scm ];
-
-  buildInputs = [ pytest ];
-
-  propagatedBuildInputs = [ psutil ];
-
-  # Remove test QoL package from install_requires
   postPatch = ''
+    # Remove test QoL package from install_requires
     substituteInPlace setup.py \
       --replace "'pytest-cache', " ""
   '';
 
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  buildInputs = [
+    pytest
+  ];
+
+  propagatedBuildInputs = [
+    psutil
+    py
+  ];
+
   # There's no tests in repo
   doCheck = false;