diff --git a/pkgs/development/python-modules/flask-testing/default.nix b/pkgs/development/python-modules/flask-testing/default.nix
index 6cfcffdb7be..e17662e7ca6 100644
--- a/pkgs/development/python-modules/flask-testing/default.nix
+++ b/pkgs/development/python-modules/flask-testing/default.nix
@@ -1,32 +1,58 @@
-{ lib, stdenv, fetchPypi, buildPythonPackage, isPy3k, flask, blinker, twill }:
+{ lib
+, stdenv
+, blinker
+, pytestCheckHook
+, buildPythonPackage
+, fetchPypi
+, flask
+, pythonOlder
+}:
 
 buildPythonPackage rec {
-  pname = "Flask-Testing";
+  pname = "flask-testing";
   version = "0.8.1";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
 
   src = fetchPypi {
-    inherit pname version;
-    sha256 = "0a734d7b68e63a9410b413cd7b1f96456f9a858bd09a6222d465650cc782eb01";
+    pname = "Flask-Testing";
+    inherit version;
+    hash = "sha256-CnNNe2jmOpQQtBPNex+WRW+ahYvQmmIi1GVlDMeC6wE=";
   };
 
-  postPatch = ''
-    substituteInPlace setup.py --replace "twill==0.9.1" "twill"
-  '';
+  propagatedBuildInputs = [
+    flask
+  ];
 
-  propagatedBuildInputs = [ flask ];
+  checkInputs = [
+    blinker
+    pytestCheckHook
+  ];
 
-  checkInputs = [ blinker ] ++ lib.optionals (!isPy3k) [ twill ];
+  # Some of the tests use localhost networking on darwin
+  doCheck = !stdenv.isDarwin;
 
-  # twill integration is outdated in Python 2, hence it the tests fails.
-  # Some of the tests use localhost networking on darwin.
-  doCheck = isPy3k && !stdenv.isDarwin;
+  disabledTests = [
+    # RuntimeError and NotImplementedError
+    "test_assert_redirects"
+    "test_server_listening"
+    "test_server_process_is_spawned"
+  ];
 
-  pythonImportsCheck = [ "flask_testing" ];
+  disabledTestPaths = [
+    # twill is only used by Python 2 according setup.py
+    "tests/test_twill.py"
+  ];
+
+  pythonImportsCheck = [
+    "flask_testing"
+  ];
 
   meta = with lib; {
-    description = "Flask unittest integration.";
+    description = "Extension provides unit testing utilities for Flask";
     homepage = "https://pythonhosted.org/Flask-Testing/";
     license = licenses.bsd3;
-    maintainers = [ maintainers.mic92 ];
+    maintainers = with maintainers; [ mic92 ];
   };
 }
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index 9d912ee5e60..c740527ed76 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -63,6 +63,7 @@ mapAliases ({
   dogpile-core = throw "dogpile-core is no longer maintained, use dogpile-cache instead"; # added 2021-11-20
   eebrightbox = throw "eebrightbox is unmaintained upstream and has therefore been removed"; # added 2022-02-03
   faulthandler = throw "faulthandler is built into ${python.executable}"; # added 2021-07-12
+  flask_testing = flask-testing; # added 2022-04-25
   garminconnect-ha = garminconnect; # added 2022-02-05
   gitdb2 = throw "gitdb2 has been deprecated, use gitdb instead."; # added 2020-03-14
   glances = throw "glances has moved to pkgs.glances"; # added 2020-20-28
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index a98d1765183..40663c181df 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3056,7 +3056,7 @@ in {
 
   flask-talisman = callPackage ../development/python-modules/flask-talisman { };
 
-  flask_testing = callPackage ../development/python-modules/flask-testing { };
+  flask-testing = callPackage ../development/python-modules/flask-testing { };
 
   flask-versioned = callPackage ../development/python-modules/flask-versioned { };