diff --git a/pkgs/development/python-modules/py3langid/default.nix b/pkgs/development/python-modules/py3langid/default.nix
index b4e001b20a24..bbc8b3492e80 100644
--- a/pkgs/development/python-modules/py3langid/default.nix
+++ b/pkgs/development/python-modules/py3langid/default.nix
@@ -3,6 +3,7 @@
   buildPythonPackage,
   fetchPypi,
   pythonOlder,
+  setuptools,
   numpy,
   pytestCheckHook,
 }:
@@ -10,7 +11,7 @@
 buildPythonPackage rec {
   pname = "py3langid";
   version = "0.3.0";
-  format = "setuptools";
+  pyproject = true;
 
   disabled = pythonOlder "3.6";
 
@@ -19,6 +20,8 @@ buildPythonPackage rec {
     hash = "sha256-CodaAxpYqvnb2nu4KF/XXoAae9J2IW/6vgN5AdS0Sew=";
   };
 
+  nativeBuildInputs = [ setuptools ];
+
   propagatedBuildInputs = [ numpy ];
 
   nativeCheckInputs = [ pytestCheckHook ];
@@ -26,6 +29,8 @@ buildPythonPackage rec {
   # nixify path to the courlan binary in the test suite
   postPatch = ''
     substituteInPlace tests/test_langid.py --replace "'langid'" "'$out/bin/langid'"
+    substituteInPlace pyproject.toml --replace-fail \
+      'numpy >= 2.0.0' numpy
   '';
 
   pythonImportsCheck = [ "py3langid" ];