diff --git a/pkgs/development/python-modules/wurlitzer/default.nix b/pkgs/development/python-modules/wurlitzer/default.nix
index e91c8a2aeaa8..79a7ef8ff029 100644
--- a/pkgs/development/python-modules/wurlitzer/default.nix
+++ b/pkgs/development/python-modules/wurlitzer/default.nix
@@ -2,19 +2,22 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+  setuptools,
   pytestCheckHook,
 }:
 
 buildPythonPackage rec {
   pname = "wurlitzer";
   version = "3.1.1";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-v7kUSrnwJIfYArn/idvT+jgtCPc+EtuK3EwvsAzTm9k=";
   };
 
+  build-system = [ setuptools ];
+
   nativeCheckInputs = [ pytestCheckHook ];
 
   pythonImportsCheck = [ "wurlitzer" ];