diff --git a/pkgs/development/python-modules/asyncstdlib/default.nix b/pkgs/development/python-modules/asyncstdlib/default.nix
index 57306bd01a4d..c31beceb1496 100644
--- a/pkgs/development/python-modules/asyncstdlib/default.nix
+++ b/pkgs/development/python-modules/asyncstdlib/default.nix
@@ -8,7 +8,7 @@
 
 buildPythonPackage rec {
   pname = "asyncstdlib";
-  version = "3.12.1";
+  version = "3.12.2";
   pyproject = true;
 
   disabled = pythonOlder "3.9";
@@ -17,10 +17,10 @@ buildPythonPackage rec {
     owner = "maxfischer2781";
     repo = "asyncstdlib";
     rev = "refs/tags/v${version}";
-    hash = "sha256-F7jS2EHiq+gK4a6+wJ8CA2YvwR37PP3yvbsLp3uE8R8=";
+    hash = "sha256-5DQM8m3aeCZAXOi+Rm+iM409juBBYdZDNqBAbhyTm/M=";
   };
 
-  nativeBuildInputs = [
+  build-system = [
     flit-core
   ];
 
diff --git a/pkgs/development/python-modules/deal/default.nix b/pkgs/development/python-modules/deal/default.nix
index b24d8be44826..41d966c8f1e8 100644
--- a/pkgs/development/python-modules/deal/default.nix
+++ b/pkgs/development/python-modules/deal/default.nix
@@ -1,49 +1,49 @@
 { lib
+, astroid
 , buildPythonPackage
-, pythonOlder
+, deal-solver
+, docstring-parser
 , fetchFromGitHub
 , flit-core
-, astroid
-, pytestCheckHook
-, docstring-parser
-, marshmallow
-, sphinx
 , hypothesis
-, vaa
-, deal-solver
+, marshmallow
 , pygments
+, pytestCheckHook
+, pythonOlder
+, sphinx
 , typeguard
 , urllib3
-, flake8
+, vaa
 }:
 
 buildPythonPackage rec {
   pname = "deal";
-  version = "4.24.3";
-  format = "pyproject";
+  version = "4.24.4";
+  pyproject = true;
+
   disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "life4";
-    repo = pname;
+    repo = "deal";
     rev = "refs/tags/${version}";
-    hash = "sha256-QlM3d/jmg6v3L3D45+cgcCej71U1dl4uZ6sAYGGm3tU=";
+    hash = "sha256-4orpoYfPGSvquhg9w63uUe8QbBa2RUpxaEJ9uy28+fU=";
   };
 
   postPatch = ''
     # don't do coverage
     substituteInPlace pyproject.toml \
-      --replace "\"--cov-fail-under=100\"," "" \
-      --replace "\"--cov=deal\"," "" \
-      --replace "\"--cov-report=html\"," "" \
-      --replace "\"--cov-report=term-missing:skip-covered\"," ""
+      --replace-fail '"--cov-fail-under=100",' "" \
+      --replace-fail '"--cov=deal",' "" \
+      --replace-fail '"--cov-report=html",' "" \
+      --replace-fail '"--cov-report=term-missing:skip-covered",' ""
   '';
 
-  nativeBuildInputs = [
+  build-system = [
     flit-core
   ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     astroid
     deal-solver
     pygments
@@ -51,15 +51,13 @@ buildPythonPackage rec {
   ];
 
   nativeCheckInputs = [
-    pytestCheckHook
-
     docstring-parser
-    marshmallow
-    sphinx
     hypothesis
-    vaa
+    marshmallow
+    pytestCheckHook
+    sphinx
     urllib3
-    flake8
+    vaa
   ];
 
   pytestFlagsArray = [
@@ -67,7 +65,7 @@ buildPythonPackage rec {
   ];
 
   disabledTests = [
-    # needs internet access
+    # Tests need internet access
     "test_smoke_has"
     "test_pure_offline"
     "test_raises_doesnt_override_another_contract"
@@ -84,25 +82,30 @@ buildPythonPackage rec {
     # assert errors
     "test_doctest"
     "test_no_violations"
+    "test_source_get_lambda_multiline_splitted_dec"
   ];
 
   disabledTestPaths = [
-    # needs internet access
+    # Test needs internet access
     "tests/test_runtime/test_offline.py"
     # depends on typeguard <4.0.0 for tests, but >=4.0.0 seems fine for runtime
     # https://github.com/life4/deal/blob/9be70fa1c5a0635880619b2cea83a9f6631eb236/pyproject.toml#L40
     "tests/test_testing.py"
   ];
 
-  pythonImportsCheck = [ "deal" ];
+  pythonImportsCheck = [
+    "deal"
+  ];
 
   meta = with lib; {
     description = "Library for design by contract (DbC) and checking values, exceptions, and side-effects";
     longDescription = ''
       In a nutshell, deal empowers you to write bug-free code.
-      By adding a few decorators to your code, you get for free tests, static analysis, formal verification, and much more
+      By adding a few decorators to your code, you get for free tests, static analysis, formal verification,
+      and much more.
     '';
     homepage = "https://github.com/life4/deal";
+    changelog = "https://github.com/life4/deal/releases/tag/${version}";
     license = licenses.mit;
     maintainers = with maintainers; [ gador ];
   };
diff --git a/pkgs/development/python-modules/icontract/default.nix b/pkgs/development/python-modules/icontract/default.nix
index e525cf89cca2..f8b9fd589f18 100644
--- a/pkgs/development/python-modules/icontract/default.nix
+++ b/pkgs/development/python-modules/icontract/default.nix
@@ -1,26 +1,28 @@
 { lib
-, buildPythonPackage
-, pythonOlder
-, fetchFromGitHub
 , astor
 , asttokens
 , asyncstdlib
+, buildPythonPackage
 , deal
 , dpcontracts
+, fetchFromGitHub
 , numpy
 , pytestCheckHook
+, pythonOlder
+, setuptools
 , typing-extensions
 }:
 
 buildPythonPackage rec {
   pname = "icontract";
   version = "2.6.6";
-  format = "setuptools";
+  pyproject = true;
+
   disabled = pythonOlder "3.6";
 
   src = fetchFromGitHub {
     owner = "Parquery";
-    repo = pname;
+    repo = "icontract";
     rev = "refs/tags/v${version}";
     hash = "sha256-R5/FBfuTvXItfTlNZMSnO18Q+etnHbQyXFWpaOpOLes=";
   };
@@ -32,7 +34,11 @@ buildPythonPackage rec {
     export ICONTRACT_SLOW=1
   '';
 
-  propagatedBuildInputs = [
+  build-system = [
+    setuptools
+  ];
+
+  dependencies = [
     asttokens
     typing-extensions
   ];
@@ -46,11 +52,16 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
+  disabledTests = [
+    # AssertionError
+    "test_abstract_method_not_implemented"
+  ];
+
   disabledTestPaths = [
     # mypy decorator checks don't pass. For some reason mypy
     # doesn't check the python file provided in the test.
     "tests/test_mypy_decorators.py"
-    # those tests seems to simply re-run some typeguard tests
+    # Those tests seems to simply re-run some typeguard tests
     "tests/test_typeguard.py"
   ];
 
@@ -59,7 +70,9 @@ buildPythonPackage rec {
     "-W" "ignore::RuntimeWarning"
   ];
 
-  pythonImportsCheck = [ "icontract" ];
+  pythonImportsCheck = [
+    "icontract"
+  ];
 
   meta = with lib; {
     description = "Provide design-by-contract with informative violation messages";