diff --git a/pkgs/development/python-modules/authheaders/default.nix b/pkgs/development/python-modules/authheaders/default.nix
index dcbeca5e83f6..77df68b23c2a 100644
--- a/pkgs/development/python-modules/authheaders/default.nix
+++ b/pkgs/development/python-modules/authheaders/default.nix
@@ -25,9 +25,9 @@ buildPythonPackage rec {
     hash = "sha256-BFMZpSJ4qCEL42xTiM/D5dkatxohiCrOWAkNZHFUhac=";
   };
 
-  nativeBuildInputs = [ setuptools ];
+  build-system = [ setuptools ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     authres
     dnspython
     dkimpy
@@ -46,10 +46,10 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "Python library for the generation of email authentication headers";
-    mainProgram = "dmarc-policy-find";
     homepage = "https://github.com/ValiMail/authentication-headers";
     changelog = "https://github.com/ValiMail/authentication-headers/blob${version}/CHANGES";
     license = licenses.mit;
     maintainers = with maintainers; [ ];
+    mainProgram = "dmarc-policy-find";
   };
 }