diff --git a/pkgs/development/python-modules/headerparser/default.nix b/pkgs/development/python-modules/headerparser/default.nix
index 550e5e9a4626..71cad63ef70f 100644
--- a/pkgs/development/python-modules/headerparser/default.nix
+++ b/pkgs/development/python-modules/headerparser/default.nix
@@ -1,25 +1,26 @@
 { lib
+, attrs
 , buildPythonPackage
+, deprecated
 , fetchFromGitHub
-, setuptools
 , pytest-mock
 , pytestCheckHook
 , pythonOlder
-, six
+, setuptools
 }:
 
 buildPythonPackage rec {
   pname = "headerparser";
-  version = "0.4.0";
-  format = "pyproject";
+  version = "0.5.1";
+  pyproject = true;
 
-  disabled = pythonOlder "3.6";
+  disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "jwodder";
-    repo = pname;
-    rev = "v${version}";
-    hash = "sha256-KJJt85iC/4oBoIelB2zUJVyHSppFem/22v6F30P5nYM=";
+    repo = "headerparser";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-CWXha7BYVO5JFuhWP8OZ95fhUsZ3Jo0cgPAM+O5bfec=";
   };
 
   nativeBuildInputs = [
@@ -27,7 +28,8 @@ buildPythonPackage rec {
   ];
 
   propagatedBuildInputs = [
-    six
+    attrs
+    deprecated
   ];
 
   nativeCheckInputs = [
@@ -35,13 +37,6 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
-  postPatch = ''
-    substituteInPlace tox.ini \
-      --replace "--cov=headerparser" "" \
-      --replace "--no-cov-on-fail" "" \
-      --replace "--flakes" ""
-  '';
-
   pythonImportsCheck = [
     "headerparser"
   ];
@@ -49,6 +44,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "Module to parse key-value pairs in the style of RFC 822 (e-mail) headers";
     homepage = "https://github.com/jwodder/headerparser";
+    changelog = "https://github.com/wheelodex/headerparser/blob/v${version}/CHANGELOG.md";
     license = with licenses; [ mit ];
     maintainers = with maintainers; [ ayazhafiz ];
   };