diff --git a/pkgs/development/python-modules/kaitaistruct/default.nix b/pkgs/development/python-modules/kaitaistruct/default.nix
index 077d24f2462e..24807eacdc00 100644
--- a/pkgs/development/python-modules/kaitaistruct/default.nix
+++ b/pkgs/development/python-modules/kaitaistruct/default.nix
@@ -5,6 +5,7 @@
   fetchFromGitHub,
   brotli,
   lz4,
+  setuptools,
 }:
 
 let
@@ -18,7 +19,7 @@ in
 buildPythonPackage rec {
   pname = "kaitaistruct";
   version = "0.10";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
@@ -30,13 +31,14 @@ buildPythonPackage rec {
     sed '32ipackages = kaitai/compress' -i setup.cfg
   '';
 
+  build-system = [ setuptools ];
+
   propagatedBuildInputs = [
     brotli
     lz4
   ];
 
-  # no tests
-  dontCheck = true;
+  doCheck = false; # no tests in upstream
 
   pythonImportsCheck = [
     "kaitaistruct"