diff --git a/pkgs/development/python-modules/pymatting/01-kdtree-signature.patch b/pkgs/development/python-modules/pymatting/01-kdtree-signature.patch
deleted file mode 100644
index 2193b260aea1..000000000000
--- a/pkgs/development/python-modules/pymatting/01-kdtree-signature.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/tests/test_kdtree.py b/tests/test_kdtree.py
-index 0110083..049fa07 100644
---- a/tests/test_kdtree.py
-+++ b/tests/test_kdtree.py
-@@ -23,7 +23,7 @@ def run_kdtree():
- 
-     tree = cKDTree(data_points)
- 
--    distances2, indices2 = tree.query(query_points, k=k, n_jobs=-1)
-+    distances2, indices2 = tree.query(query_points, k=k)
- 
-     t2 = time.perf_counter()
- 
diff --git a/pkgs/development/python-modules/pymatting/default.nix b/pkgs/development/python-modules/pymatting/default.nix
index 5e3b39dd523a..371a4a03c2f3 100644
--- a/pkgs/development/python-modules/pymatting/default.nix
+++ b/pkgs/development/python-modules/pymatting/default.nix
@@ -4,14 +4,15 @@
 , numba
 , numpy
 , pillow
-, scipy
 , pytestCheckHook
-,
+, scipy
+, setuptools
 }:
+
 buildPythonPackage rec {
   pname = "pymatting";
   version = "1.1.10";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "pymatting";
@@ -20,7 +21,9 @@ buildPythonPackage rec {
     hash = "sha256-wHCTqcBvVN/pTXH3iW57DPpMEsnehutRQB5NaugS6Zs=";
   };
 
-  patches = [ ./01-kdtree-signature.patch ];
+  nativeBuildInputs = [
+    setuptools
+  ];
 
   propagatedBuildInputs = [
     numba
@@ -29,12 +32,14 @@ buildPythonPackage rec {
     scipy
   ];
 
-  pythonImportsCheck = [ "pymatting" ];
-
   nativeCheckInputs = [
     pytestCheckHook
   ];
 
+  pythonImportsCheck = [
+    "pymatting"
+  ];
+
   disabledTests = [
     # no access to input data set
     # see: https://github.com/pymatting/pymatting/blob/master/tests/download_images.py