diff --git a/pkgs/development/python-modules/pyoverkiz/default.nix b/pkgs/development/python-modules/pyoverkiz/default.nix
index a2d5ab0b66b5..ce40b9c2a9ec 100644
--- a/pkgs/development/python-modules/pyoverkiz/default.nix
+++ b/pkgs/development/python-modules/pyoverkiz/default.nix
@@ -17,7 +17,7 @@
 buildPythonPackage rec {
   pname = "pyoverkiz";
   version = "1.13.10";
-  format = "pyproject";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
@@ -30,14 +30,14 @@ buildPythonPackage rec {
 
   postPatch = ''
     substituteInPlace pyproject.toml \
-      --replace 'pyhumps = "^3.0.2,!=3.7.3"' 'pyhumps = "^3.0.2"'
+      --replace-fail 'pyhumps = "^3.0.2,!=3.7.3"' 'pyhumps = "^3.0.2"'
   '';
 
-  nativeBuildInputs = [
+  build-system = [
     poetry-core
   ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     aiohttp
     attrs
     backoff