diff --git a/pkgs/development/python-modules/pyopnsense/default.nix b/pkgs/development/python-modules/pyopnsense/default.nix
index a59440c9298d..ffd2409b8bf8 100644
--- a/pkgs/development/python-modules/pyopnsense/default.nix
+++ b/pkgs/development/python-modules/pyopnsense/default.nix
@@ -6,7 +6,6 @@
   mock,
   pbr,
   pytestCheckHook,
-  pythonOlder,
   requests,
   testtools,
 }:
@@ -14,17 +13,16 @@
 buildPythonPackage rec {
   pname = "pyopnsense";
   version = "0.4.0";
-  format = "setuptools";
-
-  disabled = pythonOlder "3.7";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-3DKlVrOtMa55gTu557pgojRpdgrO5pEZ3L+9gKoW9yg=";
   };
 
-  propagatedBuildInputs = [
-    pbr
+  build-system = [ pbr ];
+
+  dependencies = [
     requests
   ];
 
@@ -37,11 +35,11 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "pyopnsense" ];
 
-  meta = with lib; {
+  meta = {
     description = "Python client for the OPNsense API";
     homepage = "https://github.com/mtreinish/pyopnsense";
     changelog = "https://github.com/mtreinish/pyopnsense/releases/tag/${version}";
-    license = with licenses; [ gpl3Plus ];
-    maintainers = with maintainers; [ fab ];
+    license = lib.licenses.gpl3Plus;
+    maintainers = with lib.maintainers; [ fab ];
   };
 }