diff --git a/pkgs/development/python-modules/numpy/default.nix b/pkgs/development/python-modules/numpy/default.nix
index d9ff919fe8f..bdd76696885 100644
--- a/pkgs/development/python-modules/numpy/default.nix
+++ b/pkgs/development/python-modules/numpy/default.nix
@@ -1,4 +1,15 @@
-{ lib, fetchPypi, python, buildPythonPackage, gfortran, pytest, blas, writeTextFile, isPyPy }:
+{ lib
+, fetchPypi
+, python
+, buildPythonPackage
+, gfortran
+, pytest
+, blas
+, writeTextFile
+, isPyPy
+, cython
+, setuptoolsBuildHook
+ }:
 
 let
   blasImplementation = lib.nameFromURL blas.name "-";
@@ -17,6 +28,7 @@ let
 in buildPythonPackage rec {
   pname = "numpy";
   version = "1.18.0";
+  format = "pyproject.toml";
 
   src = fetchPypi {
     inherit pname version;
@@ -24,7 +36,7 @@ in buildPythonPackage rec {
     sha256 = "a9d72d9abaf65628f0f31bbb573b7d9304e43b1e6bbae43149c17737a42764c4";
   };
 
-  nativeBuildInputs = [ gfortran pytest ];
+  nativeBuildInputs = [ gfortran pytest cython setuptoolsBuildHook ];
   buildInputs = [ blas ];
 
   patches = lib.optionals python.hasDistutilsCxxPatch [