diff --git a/pkgs/development/python-modules/pydantic/1.nix b/pkgs/development/python-modules/pydantic/1.nix
index cfd0df8c7603..0fa36cec41a1 100644
--- a/pkgs/development/python-modules/pydantic/1.nix
+++ b/pkgs/development/python-modules/pydantic/1.nix
@@ -1,41 +1,44 @@
 {
   lib,
   buildPythonPackage,
-  cython_0,
-  email-validator,
   fetchFromGitHub,
+
+  # build-system
+  cython,
+  setuptools,
+
+  # dependencies
+  typing-extensions,
+
+  # optional-dependencies
+  python-dotenv,
+  email-validator,
+
+  # tests
+  distutils,
   pytest-mock,
   pytest7CheckHook,
-  python-dotenv,
-  pythonAtLeast,
-  pythonOlder,
-  setuptools,
-  typing-extensions,
-  libxcrypt,
+  writableTmpDirAsHomeHook,
 }:
 
 buildPythonPackage rec {
   pname = "pydantic";
-  version = "1.10.16";
+  version = "1.10.21";
   pyproject = true;
 
-  disabled = pythonOlder "3.7";
-
   src = fetchFromGitHub {
     owner = "pydantic";
     repo = "pydantic";
-    rev = "refs/tags/v${version}";
-    hash = "sha256-dn/ZsxbkyK2sJxpo6IsoMBRjq1STdu+xuqHXoNG+Kzk=";
+    tag = "v${version}";
+    hash = "sha256-0kwqJsay+4xh+jgDStNciRPJmuqm8GzA+6ble4K4HuI=";
   };
 
-  nativeBuildInputs = [
+  build-system = [
+    cython
     setuptools
-    cython_0
   ];
 
-  buildInputs = lib.optionals (pythonOlder "3.9") [ libxcrypt ];
-
-  propagatedBuildInputs = [ typing-extensions ];
+  dependencies = [ typing-extensions ];
 
   optional-dependencies = {
     dotenv = [ python-dotenv ];
@@ -43,38 +46,21 @@ buildPythonPackage rec {
   };
 
   nativeCheckInputs = [
+    distutils
     pytest-mock
     pytest7CheckHook
+    writableTmpDirAsHomeHook
   ] ++ lib.flatten (lib.attrValues optional-dependencies);
 
-  pytestFlagsArray = [
-    # https://github.com/pydantic/pydantic/issues/4817
-    "-W"
-    "ignore::pytest.PytestReturnNotNoneWarning"
-  ];
-
-  preCheck = ''
-    export HOME=$(mktemp -d)
-  '';
-
-  disabledTests = lib.optionals (pythonAtLeast "3.12") [
-    # depends on distuils
-    "test_cython_function_untouched"
-    # AssertionError on exact types and wording
-    "test_model_subclassing_abstract_base_classes_without_implementation_raises_exception"
-    "test_partial_specification_name"
-    "test_secretfield"
-  ];
-
   enableParallelBuilding = true;
 
   pythonImportsCheck = [ "pydantic" ];
 
-  meta = with lib; {
+  meta = {
     description = "Data validation and settings management using Python type hinting";
     homepage = "https://github.com/pydantic/pydantic";
     changelog = "https://github.com/pydantic/pydantic/blob/v${version}/HISTORY.md";
-    license = licenses.mit;
-    maintainers = with maintainers; [ wd15 ];
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ wd15 ];
   };
 }