diff --git a/pkgs/by-name/ff/ffsubsync/package.nix b/pkgs/by-name/ff/ffsubsync/package.nix
index 8165e30c504d..759de944a6e3 100644
--- a/pkgs/by-name/ff/ffsubsync/package.nix
+++ b/pkgs/by-name/ff/ffsubsync/package.nix
@@ -1,21 +1,25 @@
 { lib
-, python3Packages
 , fetchFromGitHub
+, python3
 }:
 
-python3Packages.buildPythonApplication rec {
+python3.pkgs.buildPythonApplication rec {
   pname = "ffsubsync";
   version = "0.4.25";
-  format = "pyproject";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "smacke";
     repo = "ffsubsync";
-    rev = version;
+    rev = "refs/tags/${version}";
     hash = "sha256-ZdKZeKfAUe/FXLOur9Btb5RgXewmy3EHunQphqlxpIc=";
   };
 
-  propagatedBuildInputs = with python3Packages; [
+  nativeBuildInputs = with python3.pkgs; [
+    setuptools
+  ];
+
+  propagatedBuildInputs = with python3.pkgs; [
     auditok
     charset-normalizer
     faust-cchardet
@@ -32,9 +36,13 @@ python3Packages.buildPythonApplication rec {
     webrtcvad
   ];
 
-  nativeCheckInputs = with python3Packages; [ pytestCheckHook ];
+  nativeCheckInputs = with python3.pkgs; [
+    pytestCheckHook
+  ];
 
-  pythonImportsCheck = [ "ffsubsync" ];
+  pythonImportsCheck = [
+    "ffsubsync"
+  ];
 
   meta = with lib; {
     homepage = "https://github.com/smacke/ffsubsync";
diff --git a/pkgs/development/python-modules/pydub/default.nix b/pkgs/development/python-modules/pydub/default.nix
index e1631f74f94e..7ec3da3531cf 100644
--- a/pkgs/development/python-modules/pydub/default.nix
+++ b/pkgs/development/python-modules/pydub/default.nix
@@ -1,43 +1,59 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchFromGitHub
-
-# tests
+, fetchpatch
 , ffmpeg-full
-, python
+, pytestCheckHook
+, pythonOlder
+, setuptools
 }:
 
 buildPythonPackage rec {
   pname = "pydub";
   version = "0.25.1";
-  format = "setuptools";
+  pyproject = true;
+
+  disabled = pythonOlder "3.7";
 
-  # pypi version doesn't include required data files for tests
   src = fetchFromGitHub {
     owner = "jiaaro";
-    repo = pname;
-    rev = "v${version}";
-    sha256 = "0xskllq66wqndjfmvp58k26cv3w480sqsil6ifwp4gghir7hqc8m";
+    repo = "pydub";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-FTEMT47wPXK5i4ZGjTVAhI/NjJio3F2dbBZzYzClU3c=";
   };
 
+  patches = [
+    # Fix test assertions, https://github.com/jiaaro/pydub/pull/769
+    (fetchpatch {
+      name = "fix-assertions.patch";
+      url = "https://github.com/jiaaro/pydub/commit/66c1bf7813ae8621a71484fdcdf609734c0d8efd.patch";
+      hash = "sha256-3OIzvTgGK3r4/s5y7izHvouB4uJEmjO6cgKvegtTf7A=";
+    })
+  ];
+
+  nativeBuildInputs = [
+    setuptools
+  ];
+
+  nativeCheckInputs = [
+    ffmpeg-full
+    pytestCheckHook
+  ];
+
   pythonImportsCheck = [
     "pydub"
     "pydub.audio_segment"
     "pydub.playback"
   ];
 
-  nativeCheckInputs = [
-    ffmpeg-full
+  pytestFlagsArray = [
+    "test/test.py"
   ];
 
-  checkPhase = ''
-    ${python.interpreter} test/test.py
-  '';
-
   meta = with lib; {
     description = "Manipulate audio with a simple and easy high level interface";
     homepage = "http://pydub.com";
+    changelog = "https://github.com/jiaaro/pydub/blob/v${version}/CHANGELOG.md";
     license = licenses.mit;
     maintainers = with maintainers; [ ];
   };
diff --git a/pkgs/development/python-modules/shazamio/default.nix b/pkgs/development/python-modules/shazamio/default.nix
index 05c9784b367f..7190c1e2c0ae 100644
--- a/pkgs/development/python-modules/shazamio/default.nix
+++ b/pkgs/development/python-modules/shazamio/default.nix
@@ -72,6 +72,7 @@ buildPythonPackage rec {
     changelog = "https://github.com/dotX12/ShazamIO/releases/tag/${src.rev}";
     license = licenses.mit;
     maintainers = with maintainers; [ figsoda ];
+    # https://github.com/shazamio/ShazamIO/issues/80
     broken = versionAtLeast pydantic.version "2";
   };
 }