diff --git a/pkgs/development/python-modules/msgpack/default.nix b/pkgs/development/python-modules/msgpack/default.nix
index f519ebb89c48..18287c641989 100644
--- a/pkgs/development/python-modules/msgpack/default.nix
+++ b/pkgs/development/python-modules/msgpack/default.nix
@@ -1,29 +1,25 @@
 { lib
 , buildPythonPackage
-, fetchFromGitHub
+, fetchPypi
 , pytestCheckHook
 , pythonOlder
 , setuptools
-, cython_3
 }:
 
 buildPythonPackage rec {
   pname = "msgpack";
-  version = "1.0.7";
-  pyproject = true;
+  version = "1.0.5";
+  format = "setuptools";
 
-  disabled = pythonOlder "3.8";
+  disabled = pythonOlder "3.6";
 
-  src = fetchFromGitHub {
-    owner = "msgpack";
-    repo = "msgpack-python";
-    rev = "refs/tags/v${version}";
-    hash = "sha256-ayEyvKiTYPdhy4puUjtyGIR+jsTXd2HRINaAYxQGTZM=";
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-wHVUQoTq3Fzdxw9HVzMdmdy8FrK71ISdFfiq5M820xw=";
   };
 
   nativeBuildInputs = [
     setuptools
-    cython_3
   ];
 
   nativeCheckInputs = [