diff --git a/pkgs/development/python-modules/mdx-truly-sane-lists/default.nix b/pkgs/development/python-modules/mdx-truly-sane-lists/default.nix
index 2976abbf6c6f..f181e9eaf1ad 100644
--- a/pkgs/development/python-modules/mdx-truly-sane-lists/default.nix
+++ b/pkgs/development/python-modules/mdx-truly-sane-lists/default.nix
@@ -2,13 +2,15 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  setuptools,
   markdown,
-  python,
+  pytestCheckHook,
 }:
 
 buildPythonPackage rec {
-  pname = "mdx_truly_sane_lists";
+  pname = "mdx-truly-sane-lists";
   version = "1.3";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "radude";
@@ -17,23 +19,23 @@ buildPythonPackage rec {
     hash = "sha256-hPnqF1UA4peW8hzeFiMlsBPfodC1qJXETGoq2yUm7d4=";
   };
 
-  propagatedBuildInputs = [ markdown ];
+  build-system = [ setuptools ];
+
+  dependencies = [ markdown ];
 
   pythonImportsCheck = [ "mdx_truly_sane_lists" ];
 
-  checkPhase = ''
-    runHook preCheck
-    ${python.interpreter} mdx_truly_sane_lists/tests.py
-    runHook postCheck
-  '';
+  nativeCheckInputs = [ pytestCheckHook ];
 
-  meta = with lib; {
+  pytestFlagsArray = [ "mdx_truly_sane_lists/tests.py" ];
+
+  meta = {
     description = "Extension for Python-Markdown that makes lists truly sane";
     longDescription = ''
       Features custom indents for nested lists and fix for messy linebreaks and
       paragraphs between lists.
     '';
-    license = licenses.mit;
-    maintainers = with maintainers; [ kaction ];
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ kaction ];
   };
 }