diff --git a/pkgs/development/python-modules/pyweatherflowrest/default.nix b/pkgs/development/python-modules/pyweatherflowrest/default.nix
index 3ae2b78132ef..44d0ab267280 100644
--- a/pkgs/development/python-modules/pyweatherflowrest/default.nix
+++ b/pkgs/development/python-modules/pyweatherflowrest/default.nix
@@ -10,7 +10,7 @@
 buildPythonPackage rec {
   pname = "pyweatherflowrest";
   version = "1.0.11";
-  format = "pyproject";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
@@ -21,14 +21,9 @@ buildPythonPackage rec {
     hash = "sha256-l1V3HgzqnnoY6sWHwfgBtcIR782RwKhekY2qOLrUMNY=";
   };
 
-  nativeBuildInputs = [ setuptools ];
+  build-system = [ setuptools ];
 
-  propagatedBuildInputs = [ aiohttp ];
-
-  postPatch = ''
-    substituteInPlace pyproject.toml \
-      --replace "--cov=pyweatherflowrest --cov-append" ""
-  '';
+  dependencies = [ aiohttp ];
 
   # Module has no tests. test.py is a demo script
   doCheck = false;