diff --git a/pkgs/development/python-modules/typeguard/default.nix b/pkgs/development/python-modules/typeguard/default.nix
index 1c80ea352c09..41e7c35791ac 100644
--- a/pkgs/development/python-modules/typeguard/default.nix
+++ b/pkgs/development/python-modules/typeguard/default.nix
@@ -8,6 +8,7 @@
   pytestCheckHook,
   typing-extensions,
   importlib-metadata,
+  mypy,
   sphinxHook,
   sphinx-autodoc-typehints,
   sphinx-rtd-theme,
@@ -16,14 +17,14 @@
 
 buildPythonPackage rec {
   pname = "typeguard";
-  version = "4.2.1";
-  format = "pyproject";
+  version = "4.3.0";
+  pyproject = true;
 
   disabled = pythonOlder "3.8";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-xVahuVlIIwUQBwylP6A0H7CWRhG9BdWY2H+1IRXWX+4=";
+    hash = "sha256-ku5qCuyRNRgermBn69YX/Z3o111xT7VIcopJM7HeplE=";
   };
 
   outputs = [
@@ -31,7 +32,7 @@ buildPythonPackage rec {
     "doc"
   ];
 
-  nativeBuildInputs = [
+  build-system = [
     glibcLocales
     setuptools
     setuptools-scm
@@ -40,13 +41,16 @@ buildPythonPackage rec {
     sphinx-rtd-theme
   ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     typing-extensions
   ] ++ lib.optionals (pythonOlder "3.10") [ importlib-metadata ];
 
   env.LC_ALL = "en_US.utf-8";
 
-  nativeCheckInputs = [ pytestCheckHook ];
+  nativeCheckInputs = [
+    mypy
+    pytestCheckHook
+  ];
 
   pythonImportsCheck = [ "typeguard" ];