diff --git a/pkgs/applications/networking/p2p/deluge/default.nix b/pkgs/applications/networking/p2p/deluge/default.nix
index 9472c7b0aa0e..668bd4298d66 100644
--- a/pkgs/applications/networking/p2p/deluge/default.nix
+++ b/pkgs/applications/networking/p2p/deluge/default.nix
@@ -68,7 +68,7 @@ let
       nativeCheckInputs = with pypkgs; [
         pytestCheckHook
         pytest-twisted
-        pytest-cov
+        pytest-cov-stub
         mock
         mccabe
         pylint
diff --git a/pkgs/by-name/be/bepasty/package.nix b/pkgs/by-name/be/bepasty/package.nix
index 51309a35da9b..4c7c92a84d8d 100644
--- a/pkgs/by-name/be/bepasty/package.nix
+++ b/pkgs/by-name/be/bepasty/package.nix
@@ -57,7 +57,7 @@ bepastyPython.pkgs.buildPythonPackage rec {
     build
     flake8
     pytestCheckHook
-    pytest-cov
+    pytest-cov-stub
     selenium
     tox
     twine
diff --git a/pkgs/by-name/bu/buku/package.nix b/pkgs/by-name/bu/buku/package.nix
index edf76eadacc1..ee862b474df0 100644
--- a/pkgs/by-name/bu/buku/package.nix
+++ b/pkgs/by-name/bu/buku/package.nix
@@ -40,14 +40,14 @@ buildPythonApplication rec {
 
   nativeCheckInputs = [
     hypothesis
-    pytest
+    pytestCheckHook
     pytest-recording
     pyyaml
     mypy-extensions
     click
     pylint
     flake8
-    pytest-cov
+    pytest-cov-stub
     pyyaml
   ];
 
diff --git a/pkgs/by-name/ca/canaille/package.nix b/pkgs/by-name/ca/canaille/package.nix
index d53f3648d64e..5c2d23b62323 100644
--- a/pkgs/by-name/ca/canaille/package.nix
+++ b/pkgs/by-name/ca/canaille/package.nix
@@ -58,7 +58,7 @@ python.pkgs.buildPythonApplication rec {
       coverage
       flask-webtest
       pyquery
-      pytest-cov
+      pytest-cov-stub
       pytest-httpserver
       pytest-lazy-fixtures
       pytest-smtpd
diff --git a/pkgs/by-name/cl/cloudsmith-cli/package.nix b/pkgs/by-name/cl/cloudsmith-cli/package.nix
index 130676bcc1dc..093ace78d56e 100644
--- a/pkgs/by-name/cl/cloudsmith-cli/package.nix
+++ b/pkgs/by-name/cl/cloudsmith-cli/package.nix
@@ -51,7 +51,7 @@ python3.pkgs.buildPythonApplication rec {
 
   nativeCheckInputs = with python3.pkgs; [
     pytestCheckHook
-    pytest-cov
+    pytest-cov-stub
   ];
 
   checkInputs = with python3.pkgs; [
diff --git a/pkgs/by-name/fa/fastcov/package.nix b/pkgs/by-name/fa/fastcov/package.nix
index a118d28f7128..861199298db3 100644
--- a/pkgs/by-name/fa/fastcov/package.nix
+++ b/pkgs/by-name/fa/fastcov/package.nix
@@ -32,7 +32,7 @@ python3Packages.buildPythonPackage rec {
   dontUseCmakeConfigure = true; # cmake is used for testing
 
   nativeCheckInputs = with python3Packages; [
-    pytest
+    pytestCheckHook
     pytest-cov-stub
   ];
 
diff --git a/pkgs/by-name/gi/git-pw/package.nix b/pkgs/by-name/gi/git-pw/package.nix
index cf9bce02d574..083bea01547c 100644
--- a/pkgs/by-name/gi/git-pw/package.nix
+++ b/pkgs/by-name/gi/git-pw/package.nix
@@ -36,7 +36,7 @@ python3.pkgs.buildPythonApplication rec {
 
   nativeCheckInputs = with python3.pkgs; [
     pytest-cov-stub
-    pytest
+    pytestCheckHook
     git
   ];
 
diff --git a/pkgs/by-name/gi/gitfs/package.nix b/pkgs/by-name/gi/gitfs/package.nix
index 3b9cf7cfe17b..94c4b3868edd 100644
--- a/pkgs/by-name/gi/gitfs/package.nix
+++ b/pkgs/by-name/gi/gitfs/package.nix
@@ -27,8 +27,8 @@ python3Packages.buildPythonApplication rec {
   '';
 
   nativeCheckInputs = with python3Packages; [
-    pytest
-    pytest-cov
+    pytestCheckHook
+    pytest-cov-stub
     mock
   ];
   propagatedBuildInputs = with python3Packages; [
@@ -38,8 +38,7 @@ python3Packages.buildPythonApplication rec {
     six
   ];
 
-  checkPhase = "py.test";
-  doCheck = false;
+  pythonImportsCheck = [ "gitfs" ];
 
   meta = {
     description = "FUSE filesystem that fully integrates with git";
@@ -53,5 +52,8 @@ python3Packages.buildPythonApplication rec {
     platforms = lib.platforms.unix;
     maintainers = [ lib.maintainers.robbinch ];
     mainProgram = "gitfs";
+    # requires <=python39, otherwise you get this at runtime:
+    # AttributeError: module 'collections' has no attribute 'MutableMapping'
+    broken = true;
   };
 }
diff --git a/pkgs/by-name/me/memray/package.nix b/pkgs/by-name/me/memray/package.nix
index b2a1bc80d454..09140b5e9bc2 100644
--- a/pkgs/by-name/me/memray/package.nix
+++ b/pkgs/by-name/me/memray/package.nix
@@ -44,7 +44,7 @@ python3Packages.buildPythonApplication rec {
     with python3Packages;
     [
       ipython
-      pytest-cov # fix Unknown pytest.mark.no_cover
+      pytest-cov-stub # fix Unknown pytest.mark.no_cover
       pytest-textual-snapshot
       pytestCheckHook
     ]
diff --git a/pkgs/by-name/pa/patroni/package.nix b/pkgs/by-name/pa/patroni/package.nix
index c57cafd1f9c1..8f6b3ff4d935 100644
--- a/pkgs/by-name/pa/patroni/package.nix
+++ b/pkgs/by-name/pa/patroni/package.nix
@@ -44,7 +44,7 @@ python3Packages.buildPythonApplication rec {
     flake8
     mock
     pytestCheckHook
-    pytest-cov
+    pytest-cov-stub
     requests
     versionCheckHook
     writableTmpDirAsHomeHook
diff --git a/pkgs/by-name/re/rexi/package.nix b/pkgs/by-name/re/rexi/package.nix
index cee0aaf7a501..b8feee0ad67b 100644
--- a/pkgs/by-name/re/rexi/package.nix
+++ b/pkgs/by-name/re/rexi/package.nix
@@ -27,9 +27,9 @@ python3Packages.buildPythonApplication rec {
   ];
 
   nativeCheckInputs = with python3Packages; [
-    pytest
+    pytestCheckHook
     pytest-asyncio
-    pytest-cov
+    pytest-cov-stub
   ];
 
   pythonRelaxDeps = [
diff --git a/pkgs/by-name/so/solaar/package.nix b/pkgs/by-name/so/solaar/package.nix
index 56a176b95886..f9f2348cfe33 100644
--- a/pkgs/by-name/so/solaar/package.nix
+++ b/pkgs/by-name/so/solaar/package.nix
@@ -58,7 +58,7 @@ python3Packages.buildPythonApplication rec {
   nativeCheckInputs = with python3Packages; [
     pytestCheckHook
     pytest-mock
-    pytest-cov
+    pytest-cov-stub
   ];
 
   # the -cli symlink is just to maintain compabilility with older versions where
diff --git a/pkgs/by-name/un/unblob/package.nix b/pkgs/by-name/un/unblob/package.nix
index f6228fdcedf6..c5393e37f379 100644
--- a/pkgs/by-name/un/unblob/package.nix
+++ b/pkgs/by-name/un/unblob/package.nix
@@ -116,7 +116,7 @@ python3.pkgs.buildPythonApplication rec {
     with python3.pkgs;
     [
       pytestCheckHook
-      pytest-cov
+      pytest-cov # cannot use stub
       versionCheckHook
     ]
     ++ runtimeDeps;
diff --git a/pkgs/by-name/vi/vim-vint/package.nix b/pkgs/by-name/vi/vim-vint/package.nix
index 52edbdf0d289..68ceeffa4d82 100644
--- a/pkgs/by-name/vi/vim-vint/package.nix
+++ b/pkgs/by-name/vi/vim-vint/package.nix
@@ -1,7 +1,7 @@
 {
   lib,
   python3Packages,
-  fetchPypi,
+  fetchFromGitHub,
 }:
 
 with python3Packages;
@@ -10,17 +10,19 @@ buildPythonApplication rec {
   pname = "vim-vint";
   version = "0.3.21";
 
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "15qdh8fby9xgfjxidcfv1xmrqqrxxapky7zmyn46qx1abhp9piax";
+  src = fetchFromGitHub {
+    owner = "Vimjas";
+    repo = "vint";
+    tag = "v${version}";
+    hash = "sha256-A0yXDkB/b9kEEXSoLeqVdmdm4p2PYL2QHqbF4FgAn30=";
   };
 
   # For python 3.5 > version > 2.7 , a nested dependency (pythonPackages.hypothesis) fails.
   disabled = !pythonAtLeast "3.5";
 
   nativeCheckInputs = [
-    pytest
-    pytest-cov
+    pytestCheckHook
+    pytest-cov-stub
   ];
   propagatedBuildInputs = [
     ansicolor
@@ -29,10 +31,13 @@ buildPythonApplication rec {
     setuptools
   ];
 
-  # Unpin test dependency versions. This is fixed in master but not yet released.
   preCheck = ''
-    sed -i 's/==.*//g' test-requirements.txt
-    sed -i 's/mock == 1.0.1/mock/g' setup.py
+    substituteInPlace \
+      test/acceptance/test_cli.py \
+      test/acceptance/test_cli_vital.py \
+      --replace-fail \
+        "cmd = ['bin/vint'" \
+        "cmd = ['$out/bin/vint'"
   '';
 
   meta = with lib; {
diff --git a/pkgs/by-name/vu/vulnix/package.nix b/pkgs/by-name/vu/vulnix/package.nix
index 7ce9413457d8..a31a513a6402 100644
--- a/pkgs/by-name/vu/vulnix/package.nix
+++ b/pkgs/by-name/vu/vulnix/package.nix
@@ -28,8 +28,8 @@ python3Packages.buildPythonApplication rec {
 
   nativeCheckInputs = with python3Packages; [
     freezegun
-    pytest
-    pytest-cov
+    pytestCheckHook
+    pytest-cov-stub
   ];
 
   propagatedBuildInputs =
@@ -48,7 +48,7 @@ python3Packages.buildPythonApplication rec {
 
   postBuild = "make -C doc";
 
-  checkPhase = "py.test src/vulnix";
+  pytestFlagsArray = [ "src/vulnix" ];
 
   postInstall = ''
     install -D -t $doc/share/doc/vulnix README.rst CHANGES.rst
diff --git a/pkgs/by-name/zu/zulip-term/package.nix b/pkgs/by-name/zu/zulip-term/package.nix
index d8e3da694844..3ce923be7dba 100644
--- a/pkgs/by-name/zu/zulip-term/package.nix
+++ b/pkgs/by-name/zu/zulip-term/package.nix
@@ -67,7 +67,7 @@ buildPythonApplication rec {
     ]
     ++ (with python3.pkgs; [
       pytestCheckHook
-      pytest-cov
+      pytest-cov-stub
       pytest-mock
     ]);
 
diff --git a/pkgs/development/python-modules/colcon-mixin/default.nix b/pkgs/development/python-modules/colcon-mixin/default.nix
index b2821cda8e44..d5a7b7bdb4f0 100644
--- a/pkgs/development/python-modules/colcon-mixin/default.nix
+++ b/pkgs/development/python-modules/colcon-mixin/default.nix
@@ -3,7 +3,7 @@
   buildPythonPackage,
   fetchFromGitHub,
   colcon,
-  pytest-cov,
+  pytest-cov-stub,
   pytestCheckHook,
   setuptools,
   scspell,
@@ -29,7 +29,7 @@ buildPythonPackage rec {
   ];
 
   nativeCheckInputs = [
-    pytest-cov
+    pytest-cov-stub
     pytestCheckHook
     scspell
     writableTmpDirAsHomeHook
diff --git a/pkgs/development/python-modules/colcon-ros-domain-id-coordinator/default.nix b/pkgs/development/python-modules/colcon-ros-domain-id-coordinator/default.nix
index cf3c58ee1142..84650e2d6352 100644
--- a/pkgs/development/python-modules/colcon-ros-domain-id-coordinator/default.nix
+++ b/pkgs/development/python-modules/colcon-ros-domain-id-coordinator/default.nix
@@ -4,7 +4,7 @@
   colcon,
   fetchFromGitHub,
   pytestCheckHook,
-  pytest-cov,
+  pytest-cov-stub,
   pytest-repeat,
   pytest-rerunfailures,
   scspell,
@@ -30,7 +30,7 @@ buildPythonPackage {
 
   nativeCheckInputs = [
     pytestCheckHook
-    pytest-cov
+    pytest-cov-stub
     pytest-repeat
     pytest-rerunfailures
     scspell
diff --git a/pkgs/development/python-modules/deltalake/default.nix b/pkgs/development/python-modules/deltalake/default.nix
index 5318e09a17ac..8732a1b2aa1a 100644
--- a/pkgs/development/python-modules/deltalake/default.nix
+++ b/pkgs/development/python-modules/deltalake/default.nix
@@ -12,7 +12,7 @@
   polars,
   pytestCheckHook,
   pytest-benchmark,
-  pytest-cov,
+  pytest-cov-stub,
   pytest-mock,
   pandas,
   azure-storage-blob,
@@ -64,7 +64,7 @@ buildPythonPackage rec {
     pandas
     polars
     pytest-benchmark
-    pytest-cov
+    pytest-cov-stub
     pytest-mock
     azure-storage-blob
   ];
diff --git a/pkgs/development/python-modules/dramatiq-abort/default.nix b/pkgs/development/python-modules/dramatiq-abort/default.nix
index 165a209f21ee..b4130f701bfe 100644
--- a/pkgs/development/python-modules/dramatiq-abort/default.nix
+++ b/pkgs/development/python-modules/dramatiq-abort/default.nix
@@ -4,7 +4,7 @@
   fetchFromGitHub,
   gevent,
   pytestCheckHook,
-  pytest-cov,
+  pytest-cov-stub,
   dramatiq,
   redis,
   setuptools,
@@ -37,7 +37,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [
     redis
     pytestCheckHook
-    pytest-cov
+    pytest-cov-stub
   ];
 
   pythonImportsCheck = [ "dramatiq_abort" ];
diff --git a/pkgs/development/python-modules/haystack-ai/default.nix b/pkgs/development/python-modules/haystack-ai/default.nix
index 2c367cc70cb1..dec9d6684d27 100644
--- a/pkgs/development/python-modules/haystack-ai/default.nix
+++ b/pkgs/development/python-modules/haystack-ai/default.nix
@@ -42,7 +42,7 @@
   pylint,
   pytest,
   pytest-asyncio,
-  pytest-cov-stub,
+  pytest-cov,
   # , pytest-custom-exit-code
   python-multipart,
   reno,
@@ -167,7 +167,7 @@ buildPythonPackage rec {
       pylint
       pytest
       pytest-asyncio
-      pytest-cov-stub
+      pytest-cov
       # pytest-custom-exit-code
       python-multipart
       reno
diff --git a/pkgs/development/python-modules/iocapture/default.nix b/pkgs/development/python-modules/iocapture/default.nix
index 0e44cad6916b..715abd657b56 100644
--- a/pkgs/development/python-modules/iocapture/default.nix
+++ b/pkgs/development/python-modules/iocapture/default.nix
@@ -3,7 +3,7 @@
   buildPythonPackage,
   fetchPypi,
   flexmock,
-  pytest,
+  pytestCheckHook,
   pytest-cov-stub,
   six,
 }:
@@ -20,7 +20,7 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [
     flexmock
-    pytest
+    pytestCheckHook
     pytest-cov-stub
     six
   ];
diff --git a/pkgs/development/python-modules/langchain-perplexity/default.nix b/pkgs/development/python-modules/langchain-perplexity/default.nix
index 22d471f80f47..acc783d3b46b 100644
--- a/pkgs/development/python-modules/langchain-perplexity/default.nix
+++ b/pkgs/development/python-modules/langchain-perplexity/default.nix
@@ -13,7 +13,7 @@
   # tests
   langchain-tests,
   pytest-asyncio,
-  pytest-cov,
+  pytest-cov-stub,
   pytest-mock,
   pytestCheckHook,
 
@@ -51,7 +51,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [
     langchain-tests
     pytest-asyncio
-    pytest-cov
+    pytest-cov-stub
     pytest-mock
     pytestCheckHook
   ];
diff --git a/pkgs/development/python-modules/nonbloat-db/default.nix b/pkgs/development/python-modules/nonbloat-db/default.nix
index 7e3d3f9a70d2..b87e03a9604c 100644
--- a/pkgs/development/python-modules/nonbloat-db/default.nix
+++ b/pkgs/development/python-modules/nonbloat-db/default.nix
@@ -14,7 +14,7 @@
   # tests
   pytestCheckHook,
   pytest-asyncio,
-  pytest-cov,
+  pytest-cov-stub,
   pytest-mock,
   pytest-randomly,
   faker,
@@ -45,7 +45,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [
     pytestCheckHook
     pytest-asyncio
-    pytest-cov
+    pytest-cov-stub
     pytest-mock
     pytest-randomly
     faker
diff --git a/pkgs/development/python-modules/pdfplumber/default.nix b/pkgs/development/python-modules/pdfplumber/default.nix
index 6a8b080339cf..876324a0c03c 100644
--- a/pkgs/development/python-modules/pdfplumber/default.nix
+++ b/pkgs/development/python-modules/pdfplumber/default.nix
@@ -11,7 +11,7 @@
   pdfminer-six,
   pillow,
   pypdfium2,
-  pytest-cov,
+  pytest-cov-stub,
   pytest-parallel,
   pytestCheckHook,
   types-pillow,
@@ -44,7 +44,7 @@ buildPythonPackage rec {
     nbexec
     pandas
     pandas-stubs
-    pytest-cov
+    pytest-cov-stub
     pytest-parallel
     pytestCheckHook
     types-pillow
diff --git a/pkgs/development/python-modules/plaster/default.nix b/pkgs/development/python-modules/plaster/default.nix
index 0651404dc477..b01e94bc1d57 100644
--- a/pkgs/development/python-modules/plaster/default.nix
+++ b/pkgs/development/python-modules/plaster/default.nix
@@ -1,7 +1,8 @@
 {
+  lib,
   buildPythonPackage,
   fetchPypi,
-  pytest,
+  pytestCheckHook,
   pytest-cov-stub,
 }:
 
@@ -15,12 +16,15 @@ buildPythonPackage rec {
     hash = "sha256-+L78VL+MEUfBCrQCl+yEwmdvotTqXW9STZQ2qAB075g=";
   };
 
-  checkPhase = ''
-    py.test
-  '';
-
   nativeCheckInputs = [
-    pytest
+    pytestCheckHook
     pytest-cov-stub
   ];
+
+  meta = {
+    description = "Loader interface around multiple config file formats";
+    homepage = "https://pypi.org/project/plaster/";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ ];
+  };
 }
diff --git a/pkgs/development/python-modules/polars/default.nix b/pkgs/development/python-modules/polars/default.nix
index 0cbeee4d65a1..c2dafd53a442 100644
--- a/pkgs/development/python-modules/polars/default.nix
+++ b/pkgs/development/python-modules/polars/default.nix
@@ -9,7 +9,7 @@
   pkgs, # zstd hidden by python3Packages.zstd
   pytestCheckHook,
   pytest-codspeed ? null, # Not in Nixpkgs
-  pytest-cov,
+  pytest-cov-stub,
   pytest-xdist,
   pytest-benchmark,
   rustc,
@@ -229,7 +229,7 @@ buildPythonPackage rec {
     nativeCheckInputs = [
       pytestCheckHook
       pytest-codspeed
-      pytest-cov
+      pytest-cov-stub
       pytest-xdist
       pytest-benchmark
     ];
diff --git a/pkgs/development/python-modules/property-manager/default.nix b/pkgs/development/python-modules/property-manager/default.nix
index 71fa0e1aeddb..02c0b6accd46 100644
--- a/pkgs/development/python-modules/property-manager/default.nix
+++ b/pkgs/development/python-modules/property-manager/default.nix
@@ -5,7 +5,7 @@
   humanfriendly,
   verboselogs,
   coloredlogs,
-  pytest,
+  pytestCheckHook,
   pytest-cov-stub,
 }:
 
@@ -27,7 +27,7 @@ buildPythonPackage rec {
     verboselogs
   ];
   nativeCheckInputs = [
-    pytest
+    pytestCheckHook
     pytest-cov-stub
   ];
 
diff --git a/pkgs/development/python-modules/pygerber/default.nix b/pkgs/development/python-modules/pygerber/default.nix
index 79017768fd90..cd5c62f8dc9f 100644
--- a/pkgs/development/python-modules/pygerber/default.nix
+++ b/pkgs/development/python-modules/pygerber/default.nix
@@ -26,7 +26,6 @@
   dulwich,
   tzlocal,
   pytest-xdist,
-  pytest-cov,
   pytest-lsp,
   pytest-asyncio,
   pytest-mock,
@@ -77,7 +76,6 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [
     pytest-asyncio
-    pytest-cov
     pytest-xdist
     pytest-lsp
     pytest-mock
@@ -94,6 +92,8 @@ buildPythonPackage rec {
     "test/gerberx3/test_language_server/tests.py"
   ];
 
+  pytestFlagsArray = [ "--override-ini required_plugins=''" ];
+
   pythonImportsCheck = [ "pygerber" ];
 
   meta = {
diff --git a/pkgs/development/python-modules/pyscaffold/default.nix b/pkgs/development/python-modules/pyscaffold/default.nix
index 5a0b13086071..127ca5bb96c2 100644
--- a/pkgs/development/python-modules/pyscaffold/default.nix
+++ b/pkgs/development/python-modules/pyscaffold/default.nix
@@ -23,7 +23,7 @@
   certifi,
   flake8,
   pytest,
-  pytest-cov-stub,
+  pytest-cov,
   pytest-randomly,
   pytest-xdist,
   sphinx,
@@ -80,7 +80,7 @@ buildPythonPackage rec {
       flake8
       pre-commit
       pytest
-      pytest-cov-stub
+      pytest-cov
       pytest-randomly
       pytest-xdist
       setuptools
diff --git a/pkgs/development/python-modules/pyscaffoldext-cookiecutter/default.nix b/pkgs/development/python-modules/pyscaffoldext-cookiecutter/default.nix
index d5ba7c9b6d82..a34bf93334e9 100644
--- a/pkgs/development/python-modules/pyscaffoldext-cookiecutter/default.nix
+++ b/pkgs/development/python-modules/pyscaffoldext-cookiecutter/default.nix
@@ -11,7 +11,7 @@
   configupdater,
   pre-commit,
   pytest,
-  pytest-cov-stub,
+  pytest-cov,
   pytest-xdist,
   tox,
   virtualenv,
@@ -44,7 +44,7 @@ buildPythonPackage rec {
       configupdater
       pre-commit
       pytest
-      pytest-cov-stub
+      pytest-cov
       pytest-xdist
       setuptools-scm
       tox
diff --git a/pkgs/development/python-modules/pyscaffoldext-custom-extension/default.nix b/pkgs/development/python-modules/pyscaffoldext-custom-extension/default.nix
index 0ee14743b5e9..ee4bc3aa728b 100644
--- a/pkgs/development/python-modules/pyscaffoldext-custom-extension/default.nix
+++ b/pkgs/development/python-modules/pyscaffoldext-custom-extension/default.nix
@@ -11,7 +11,7 @@
   pyscaffold,
   pre-commit,
   pytest,
-  pytest-cov-stub,
+  pytest-cov,
   pytest-xdist,
   tox,
   virtualenv,
@@ -45,7 +45,7 @@ buildPythonPackage rec {
       configupdater
       pre-commit
       pytest
-      pytest-cov-stub
+      pytest-cov
       pytest-xdist
       setuptools-scm
       tox
diff --git a/pkgs/development/python-modules/pyscaffoldext-django/default.nix b/pkgs/development/python-modules/pyscaffoldext-django/default.nix
index 6270dbc2d1d5..e0e9ca4cf69f 100644
--- a/pkgs/development/python-modules/pyscaffoldext-django/default.nix
+++ b/pkgs/development/python-modules/pyscaffoldext-django/default.nix
@@ -10,7 +10,7 @@
   configupdater,
   pre-commit,
   pytest,
-  pytest-cov-stub,
+  pytest-cov,
   pytest-xdist,
   tox,
   virtualenv,
@@ -42,7 +42,7 @@ buildPythonPackage rec {
       configupdater
       pre-commit
       pytest
-      pytest-cov-stub
+      pytest-cov
       pytest-xdist
       setuptools-scm
       tox
diff --git a/pkgs/development/python-modules/pyscaffoldext-dsproject/default.nix b/pkgs/development/python-modules/pyscaffoldext-dsproject/default.nix
index cc70d4098ab8..9763ba8ace95 100644
--- a/pkgs/development/python-modules/pyscaffoldext-dsproject/default.nix
+++ b/pkgs/development/python-modules/pyscaffoldext-dsproject/default.nix
@@ -11,7 +11,7 @@
   configupdater,
   pre-commit,
   pytest,
-  pytest-cov-stub,
+  pytest-cov,
   pytest-xdist,
   tox,
   virtualenv,
@@ -44,7 +44,7 @@ buildPythonPackage rec {
       configupdater
       pre-commit
       pytest
-      pytest-cov-stub
+      pytest-cov
       pytest-xdist
       setuptools-scm
       tox
diff --git a/pkgs/development/python-modules/pyscaffoldext-markdown/default.nix b/pkgs/development/python-modules/pyscaffoldext-markdown/default.nix
index d84320a77a95..4d6157ed4d99 100644
--- a/pkgs/development/python-modules/pyscaffoldext-markdown/default.nix
+++ b/pkgs/development/python-modules/pyscaffoldext-markdown/default.nix
@@ -11,7 +11,7 @@
   configupdater,
   pre-commit,
   pytest,
-  pytest-cov-stub,
+  pytest-cov,
   pytest-xdist,
   tox,
   twine,
@@ -46,7 +46,7 @@ buildPythonPackage rec {
       configupdater
       pre-commit
       pytest
-      pytest-cov-stub
+      pytest-cov
       pytest-xdist
       setuptools-scm
       tox
diff --git a/pkgs/development/python-modules/pyscaffoldext-travis/default.nix b/pkgs/development/python-modules/pyscaffoldext-travis/default.nix
index 4eeaafd14c22..6c08f6c23adc 100644
--- a/pkgs/development/python-modules/pyscaffoldext-travis/default.nix
+++ b/pkgs/development/python-modules/pyscaffoldext-travis/default.nix
@@ -10,7 +10,7 @@
   configupdater,
   pre-commit,
   pytest,
-  pytest-cov-stub,
+  pytest-cov,
   pytest-xdist,
   tox,
   virtualenv,
@@ -42,7 +42,7 @@ buildPythonPackage rec {
       configupdater
       pre-commit
       pytest
-      pytest-cov-stub
+      pytest-cov
       pytest-xdist
       setuptools-scm
       tox
diff --git a/pkgs/development/python-modules/reikna/default.nix b/pkgs/development/python-modules/reikna/default.nix
index 6dee74d2b712..ab32dd6e5aaf 100644
--- a/pkgs/development/python-modules/reikna/default.nix
+++ b/pkgs/development/python-modules/reikna/default.nix
@@ -4,7 +4,7 @@
   buildPythonPackage,
   sphinx,
   pytest-cov-stub,
-  pytest,
+  pytestCheckHook,
   mako,
   numpy,
   funcsigs,
@@ -27,7 +27,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [
     sphinx
     pytest-cov-stub
-    pytest
+    pytestCheckHook
   ];
 
   propagatedBuildInputs =
@@ -39,10 +39,6 @@ buildPythonPackage rec {
     ++ lib.optional withCuda pycuda
     ++ lib.optional withOpenCL pyopencl;
 
-  checkPhase = ''
-    py.test
-  '';
-
   # Requires device
   doCheck = false;
 
diff --git a/pkgs/development/python-modules/sanic-ext/default.nix b/pkgs/development/python-modules/sanic-ext/default.nix
index 581b44962816..17c33e3563fa 100644
--- a/pkgs/development/python-modules/sanic-ext/default.nix
+++ b/pkgs/development/python-modules/sanic-ext/default.nix
@@ -18,7 +18,7 @@
   msgspec,
   pydantic,
   pytest,
-  pytest-cov,
+  pytest-cov-stub,
   pytest-asyncio,
   tox,
   jinja2,
@@ -51,7 +51,7 @@ buildPythonPackage rec {
     msgspec
     pydantic
     pytest
-    pytest-cov
+    pytest-cov-stub
     pytest-asyncio
     tox
     jinja2
diff --git a/pkgs/development/python-modules/sklearn-compat/default.nix b/pkgs/development/python-modules/sklearn-compat/default.nix
index 3fd17c6cade4..e4bdc1a2d85f 100644
--- a/pkgs/development/python-modules/sklearn-compat/default.nix
+++ b/pkgs/development/python-modules/sklearn-compat/default.nix
@@ -6,7 +6,7 @@
   scikit-learn,
   pandas,
   pytestCheckHook,
-  pytest-cov,
+  pytest-cov-stub,
   pytest-xdist,
   pytz,
 }:
@@ -34,7 +34,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [
     pandas
     pytestCheckHook
-    pytest-cov
+    pytest-cov-stub
     pytest-xdist
     pytz
   ];
diff --git a/pkgs/servers/isso/default.nix b/pkgs/servers/isso/default.nix
index 7428d2d6cbba..26bec1355f12 100644
--- a/pkgs/servers/isso/default.nix
+++ b/pkgs/servers/isso/default.nix
@@ -66,14 +66,10 @@ buildPythonApplication rec {
   '';
 
   nativeCheckInputs = [
-    pytest
-    pytest-cov
+    pytestCheckHook
+    pytest-cov-stub
   ];
 
-  checkPhase = ''
-    pytest
-  '';
-
   passthru.tests = { inherit (nixosTests) isso; };
 
   meta = with lib; {
diff --git a/pkgs/tools/audio/beets/common.nix b/pkgs/tools/audio/beets/common.nix
index c914a44ef616..e12817b0cc7c 100644
--- a/pkgs/tools/audio/beets/common.nix
+++ b/pkgs/tools/audio/beets/common.nix
@@ -145,7 +145,7 @@ python3Packages.buildPythonApplication {
     with python3Packages;
     [
       pytestCheckHook
-      pytest-cov
+      pytest-cov-stub
       mock
       rarfile
       responses