diff --git a/pkgs/development/python-modules/hickle/default.nix b/pkgs/development/python-modules/hickle/default.nix
index 21af8addaac0..8d442544fa78 100644
--- a/pkgs/development/python-modules/hickle/default.nix
+++ b/pkgs/development/python-modules/hickle/default.nix
@@ -7,43 +7,33 @@
 , astropy
 , scipy
 , pandas
-, codecov
-, pytest
-, pytest-cov
-, pytest-runner
-, coveralls
-, twine
-, check-manifest
+, pytestCheckHook
 , lib
 }:
 
 buildPythonPackage rec {
   pname   = "hickle";
-  version = "4.0.4";
+  version = "5.0.2";
   disabled = pythonOlder "3.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0d35030a76fe1c7fa6480088cde932689960ed354a2539ffaf5f3c90c578c06f";
+    hash = "sha256-2+7OF/a89jK/zLhbk/Q2A+zsKnfRbq3YMKGycEWsLEQ=";
   };
 
   postPatch = ''
-    substituteInPlace requirements_test.txt \
-      --replace 'astropy<3.1;' 'astropy;' --replace 'astropy<3.0;' 'astropy;'
+    substituteInPlace tox.ini --replace "--cov=./hickle" ""
   '';
 
   propagatedBuildInputs = [ h5py numpy dill ];
 
-  doCheck = false; # incompatible with latest astropy
   checkInputs = [
-    pytest pytest-cov pytest-runner coveralls scipy pandas astropy twine check-manifest codecov
+    pytestCheckHook scipy pandas astropy
   ];
 
   pythonImportsCheck = [ "hickle" ];
 
   meta = {
-    # incompatible with h5py>=3.0, see https://github.com/telegraphic/hickle/issues/143
-    broken = true;
     description = "Serialize Python data to HDF5";
     homepage = "https://github.com/telegraphic/hickle";
     license = lib.licenses.mit;
diff --git a/pkgs/development/python-modules/pywick/default.nix b/pkgs/development/python-modules/pywick/default.nix
index 6cbb64845dbb..13a037f345a8 100644
--- a/pkgs/development/python-modules/pywick/default.nix
+++ b/pkgs/development/python-modules/pywick/default.nix
@@ -1,16 +1,27 @@
 { buildPythonPackage
 , fetchFromGitHub
 , pythonOlder
-, pytest
+, pytestCheckHook
+, albumentations
+, dill
 , h5py
 , hickle
 , numpy
+, opencv4
 , pandas
 , pillow
+, prodict
+, pycm
+, pyyaml
+, scipy
+, requests
+, scikitimage
 , six
+, tabulate
 , torch
 , torchvision
 , tqdm
+, yacs
 , lib
 }:
 
@@ -27,17 +38,34 @@ buildPythonPackage rec {
     sha256 = "0wnijdvqgdpzfdsy1cga3bsr0n7zzsl8hp4dskqwxx087g5h1r84";
   };
 
+  postPatch = ''
+    substituteInPlace setup.py --replace "opencv-python-headless" "opencv"
+  '';
+
   propagatedBuildInputs = [
-    h5py hickle numpy pandas pillow six torch torchvision tqdm
+    albumentations
+    dill
+    h5py
+    hickle
+    numpy
+    opencv4
+    pandas
+    pillow
+    prodict
+    pycm
+    pyyaml
+    scipy
+    requests
+    scikitimage
+    tabulate
+    torch
+    torchvision
+    tqdm
+    six
+    yacs
   ];
 
-  checkInputs = [ pytest ];
-
-  checkPhase = ''
-    runHook preCheck
-    pytest tests/
-    runHook postCheck
-  '';
+  checkInputs = [ pytestCheckHook ];
 
   meta = {
     description = "High-level training framework for Pytorch";