diff --git a/pkgs/development/python-modules/csv2md/default.nix b/pkgs/development/python-modules/csv2md/default.nix
index 15c0ad1029c1..b255d200771a 100644
--- a/pkgs/development/python-modules/csv2md/default.nix
+++ b/pkgs/development/python-modules/csv2md/default.nix
@@ -2,12 +2,13 @@
   lib,
   fetchFromGitHub,
   buildPythonPackage,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "csv2md";
   version = "1.6.0";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "lzakharov";
@@ -16,6 +17,8 @@ buildPythonPackage rec {
     hash = "sha256-51MCeM/zfjYMhB8Ryt1RMevEwszAzgYrJsyViEIOYVY=";
   };
 
+  build-system = [ setuptools ];
+
   pythonImportsCheck = [ "csv2md" ];
 
   meta = {