diff --git a/pkgs/development/python-modules/spdx-tools/default.nix b/pkgs/development/python-modules/spdx-tools/default.nix
index dac04709b101..2519f3038bbe 100644
--- a/pkgs/development/python-modules/spdx-tools/default.nix
+++ b/pkgs/development/python-modules/spdx-tools/default.nix
@@ -4,10 +4,10 @@
   buildPythonPackage,
   click,
   fetchFromGitHub,
+  fetchpatch,
   license-expression,
   ply,
   pytestCheckHook,
-  pythonOlder,
   pyyaml,
   rdflib,
   semantic-version,
@@ -20,9 +20,7 @@
 buildPythonPackage rec {
   pname = "spdx-tools";
   version = "0.8.3";
-  format = "pyproject";
-
-  disabled = pythonOlder "3.7";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "spdx";
@@ -31,12 +29,21 @@ buildPythonPackage rec {
     hash = "sha256-r7+RYGoq3LJYN1jYfwzb1r3fc/kL+CPd4pmGATFq8Pw=";
   };
 
-  nativeBuildInputs = [
+  patches = [
+    # https://github.com/spdx/tools-python/issues/844
+    (fetchpatch {
+      name = "beartype-0.20-compat.patch";
+      url = "https://github.com/spdx/tools-python/pull/841/commits/3b13bd5af36a2b78f5c87fdbadc3f2601d2dcd8d.patch";
+      hash = "sha256-8sQNGRss4R1olsw+xGps3NICyimBxKv47TaSrCcnVhA=";
+    })
+  ];
+
+  build-system = [
     setuptools
     setuptools-scm
   ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     beartype
     click
     license-expression