diff --git a/pkgs/development/python-modules/cstruct/default.nix b/pkgs/development/python-modules/cstruct/default.nix
index d30f702ce6b5..fb14a65d31fc 100644
--- a/pkgs/development/python-modules/cstruct/default.nix
+++ b/pkgs/development/python-modules/cstruct/default.nix
@@ -3,18 +3,21 @@
   buildPythonPackage,
   fetchFromGitHub,
   pytestCheckHook,
+  setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "cstruct";
-  version = "6.1";
-  format = "setuptools";
+  version = "6.2";
+  pyproject = true;
+
+  build-system = [ setuptools ];
 
   src = fetchFromGitHub {
     owner = "andreax79";
     repo = "python-cstruct";
-    tag = "v${version}";
-    hash = "sha256-9MC6f8U++vJkglBmGMTmiamE8XqUNKTzKOz7TA148Ys=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-jLpuvApEP8Acva/OV3ulwl4+dOy8t/cD/LFJWWnD3BM=";
   };
 
   pythonImportsCheck = [ "cstruct" ];
@@ -24,8 +27,8 @@ buildPythonPackage rec {
   meta = {
     description = "C-style structs for Python";
     homepage = "https://github.com/andreax79/python-cstruct";
-    changelog = "https://github.com/andreax79/python-cstruct/blob/${src.tag}/changelog.txt";
+    changelog = "https://github.com/andreax79/python-cstruct/blob/${finalAttrs.src.tag}/changelog.txt";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ tnias ];
   };
-}
+})