diff --git a/pkgs/development/python-modules/dramatiq/default.nix b/pkgs/development/python-modules/dramatiq/default.nix
index e16d7d4d2a854..12535c9813b86 100644
--- a/pkgs/development/python-modules/dramatiq/default.nix
+++ b/pkgs/development/python-modules/dramatiq/default.nix
@@ -89,6 +89,9 @@ buildPythonPackage rec {
     "test_rabbitmq_process_100k_messages_with_cli"
     "test_rabbitmq_process_10k_fib_with_cli"
     "test_rabbitmq_process_1k_latency_with_cli"
+    # AssertionError
+    "test_cli_scrubs_stale_pid_files"
+    "test_message_contains_requeue_time_after_retry"
   ]
   ++ lib.optionals stdenv.hostPlatform.isDarwin [
     # Takes too long for darwin ofborg
diff --git a/pkgs/development/python-modules/flask-dramatiq/default.nix b/pkgs/development/python-modules/flask-dramatiq/default.nix
index 1be6b757ec38e..7ee16fbd9423e 100644
--- a/pkgs/development/python-modules/flask-dramatiq/default.nix
+++ b/pkgs/development/python-modules/flask-dramatiq/default.nix
@@ -1,27 +1,25 @@
 {
   lib,
   buildPythonPackage,
-  pythonOlder,
-  fetchFromGitLab,
-  poetry-core,
   dramatiq,
-  flask,
-  requests,
-  pytestCheckHook,
-  pytest-cov-stub,
+  fetchFromGitLab,
   flask-migrate,
+  flask,
   periodiq,
+  poetry-core,
   postgresql,
   postgresqlTestHook,
   psycopg2,
+  pytest-cov-stub,
+  pytest-mock,
+  pytestCheckHook,
+  requests,
 }:
 
 buildPythonPackage {
   pname = "flask-dramatiq";
   version = "0.6.0";
-  format = "pyproject";
-
-  disabled = pythonOlder "3.6";
+  pyproject = true;
 
   src = fetchFromGitLab {
     owner = "bersace";
@@ -38,20 +36,21 @@ buildPythonPackage {
     patchShebangs --build ./example.py
   '';
 
-  nativeBuildInputs = [ poetry-core ];
+  build-system = [ poetry-core ];
 
-  propagatedBuildInputs = [ dramatiq ];
+  dependencies = [ dramatiq ];
 
   nativeCheckInputs = [
-    pytestCheckHook
-    pytest-cov-stub
     flask
-    requests
     flask-migrate
     periodiq
     postgresql
     postgresqlTestHook
     psycopg2
+    pytest-cov-stub
+    pytest-mock
+    pytestCheckHook
+    requests
   ]
   ++ dramatiq.optional-dependencies.rabbitmq;
 
@@ -62,23 +61,13 @@ buildPythonPackage {
     python3 ./example.py db upgrade
   '';
 
-  pytestFlags = [
-    "-x"
-  ];
-
-  disabledTestPaths = [
-    "tests/func/"
-    "tests/unit"
-  ];
-
-  pythonImportsCheck = [ "flask_dramatiq" ];
-
-  # Does HTTP requests to localhost
   disabledTests = [
     "test_fast"
     "test_other"
   ];
 
+  pythonImportsCheck = [ "flask_dramatiq" ];
+
   meta = with lib; {
     description = "Adds Dramatiq support to your Flask application";
     homepage = "https://gitlab.com/bersace/flask-dramatiq";
diff --git a/pkgs/development/python-modules/prometheus-flask-exporter/default.nix b/pkgs/development/python-modules/prometheus-flask-exporter/default.nix
index bd594d8b2f8a3..8b7f991f279ba 100644
--- a/pkgs/development/python-modules/prometheus-flask-exporter/default.nix
+++ b/pkgs/development/python-modules/prometheus-flask-exporter/default.nix
@@ -5,28 +5,37 @@
   flask,
   prometheus-client,
   pytestCheckHook,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "prometheus-flask-exporter";
-  version = "0.22.4";
-  format = "setuptools";
+  version = "0.23.2";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "rycus86";
     repo = "prometheus_flask_exporter";
-    rev = version;
-    hash = "sha256-GAQ80J7at8Apqu+DUMN3+rLi/lrNv5Y7w/DKpUN2iu8=";
+    tag = version;
+    hash = "sha256-fWCIthtBiPJwn/Mbbwdv2+1cr9nlpUsPE2mDkaSsfpM=";
   };
 
-  propagatedBuildInputs = [
+  build-system = [ setuptools ];
+
+  dependencies = [
     flask
     prometheus-client
   ];
 
   nativeCheckInputs = [ pytestCheckHook ];
+
   enabledTestPaths = [ "tests/" ];
 
+  disabledTests = [
+    # AssertionError
+    "test_group_by_lambda_is_not_supported"
+  ];
+
   meta = with lib; {
     description = "Prometheus exporter for Flask applications";
     homepage = "https://github.com/rycus86/prometheus_flask_exporter";