1 files changed, 5 insertions, 5 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/marshmallow/default.nix b/nixpkgs/pkgs/development/python-modules/marshmallow/default.nix
index 880e3c869aab..bbb336884c19 100644
--- a/nixpkgs/pkgs/development/python-modules/marshmallow/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/marshmallow/default.nix
@@ -1,17 +1,17 @@
 { lib
 , buildPythonPackage
 , fetchFromGitHub
+, flit-core
+, packaging
 , pytestCheckHook
 , pythonOlder
 , pytz
 , simplejson
-, packaging
-, setuptools
 }:
 
 buildPythonPackage rec {
   pname = "marshmallow";
-  version = "3.20.2";
+  version = "3.21.1";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -20,11 +20,11 @@ buildPythonPackage rec {
     owner = "marshmallow-code";
     repo = "marshmallow";
     rev = "refs/tags/${version}";
-    hash = "sha256-z6Quf6uTelGwB/uYayVXtVmculwaoI5LL8I0kKiM/e8=";
+    hash = "sha256-KhXasYKooZRokRoFlWKOaQzSUe6tXDtUlrf65eGGUi8=";
   };
 
   nativeBuildInputs = [
-    setuptools
+    flit-core
   ];
 
   propagatedBuildInputs = [