diff --git a/pkgs/development/python-modules/caio/default.nix b/pkgs/development/python-modules/caio/default.nix
index f8c3df017a8a..61a2a6ecb4e7 100644
--- a/pkgs/development/python-modules/caio/default.nix
+++ b/pkgs/development/python-modules/caio/default.nix
@@ -7,22 +7,25 @@
   pytest-aiohttp,
   pytestCheckHook,
   pythonOlder,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "caio";
   version = "0.9.13";
-  format = "setuptools";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "mosquito";
-    repo = pname;
+    repo = "caio";
     rev = "refs/tags/${version}";
     hash = "sha256-Q87NuL6yZ5uKImQqqdKTMWNyfUOb4NaZDEvNdqZbHDk=";
   };
 
+  build-system = [ setuptools ];
+
   nativeCheckInputs = [
     aiomisc
     pytest-aiohttp