diff --git a/pkgs/development/python-modules/quantities/default.nix b/pkgs/development/python-modules/quantities/default.nix
index 74f28e526ff8..8ed59a545f79 100644
--- a/pkgs/development/python-modules/quantities/default.nix
+++ b/pkgs/development/python-modules/quantities/default.nix
@@ -1,7 +1,8 @@
 {
   lib,
   buildPythonPackage,
-  fetchPypi,
+  fetchFromGitHub,
+  fetchpatch2,
   numpy,
   pytestCheckHook,
   pythonOlder,
@@ -12,21 +13,31 @@
 buildPythonPackage rec {
   pname = "quantities";
   version = "0.15.0";
-  format = "setuptools";
+  pyproject = true;
 
   disabled = pythonOlder "3.8";
 
-  src = fetchPypi {
-    inherit pname version;
-    hash = "sha256-nqMeKg11F88k1UaxQUbe+SkmOZk6YWzKYbh173lrSys=";
+  src = fetchFromGitHub {
+    owner = "python-quantities";
+    repo = "python-quantities";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-N20xfzGtM0VnfkJtzMytNLySTkgVz2xf1nEJxlwBSCI=";
   };
 
-  nativeBuildInputs = [
+  patches = [
+    (fetchpatch2 {
+      name = "prevent-arbitrary-code-eval.patch";
+      url = "https://github.com/python-quantities/python-quantities/pull/236.patch";
+      hash = "sha256-H1tOfXqNMIKY01m6o2PsfZG0CvnWNxW2qIWA5ce1lRk=";
+    })
+  ];
+
+  build-system = [
     setuptools
     setuptools-scm
   ];
 
-  propagatedBuildInputs = [ numpy ];
+  dependencies = [ numpy ];
 
   nativeCheckInputs = [ pytestCheckHook ];