diff --git a/pkgs/development/python-modules/class-registry/default.nix b/pkgs/development/python-modules/class-registry/default.nix
index 3faf07966d09..1accefe5f1e5 100644
--- a/pkgs/development/python-modules/class-registry/default.nix
+++ b/pkgs/development/python-modules/class-registry/default.nix
@@ -1,32 +1,32 @@
-{
-  buildPythonPackage,
-  fetchPypi,
-  lib,
-  nose,
-  six,
-  typing ? null,
-  isPy27,
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, nose
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "class-registry";
-  version = "2.1.2";
+  version = "3.0.5";
+  disabled = pythonOlder "3.5";
 
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "0zjf9nczl1ifzj07bgs6mwxsfd5xck9l0lchv2j0fv2n481xp2v7";
+  src = fetchFromGitHub {
+    owner = "todofixthis";
+    repo = pname;
+    rev = version;
+    sha256 = "0gpvq4a6qrr2iki6b4vxarjr1jrsw560m2qzm5bb43ix8c8b7y3q";
   };
 
-  propagatedBuildInputs = [ six ] ++ lib.optional isPy27 typing;
-  checkInputs = [ nose ];
+  checkInputs = [
+    nose
+  ];
 
-  # Tests currently failing.
-  doCheck = false;
+  pythonImportsCheck = [ "class_registry" ];
 
-  meta = {
-    description = "Factory+Registry pattern for Python classes.";
+  meta = with lib; {
+    description = "Factory and registry pattern for Python classes";
     homepage = "https://class-registry.readthedocs.io/en/latest/";
-    license = lib.licenses.mit;
-    maintainers = with lib.maintainers; [ kevincox ];
+    license = licenses.mit;
+    maintainers = with maintainers; [ kevincox ];
   };
 }