diff --git a/pkgs/development/python-modules/deprecated/default.nix b/pkgs/development/python-modules/deprecated/default.nix
index 4cb4805b4ca4..40c20a40c20c 100644
--- a/pkgs/development/python-modules/deprecated/default.nix
+++ b/pkgs/development/python-modules/deprecated/default.nix
@@ -1,20 +1,33 @@
-{ lib, fetchPypi, buildPythonPackage, wrapt, pytest }:
+{ lib
+, fetchPypi
+, buildPythonPackage
+, wrapt
+, pytestCheckHook
+}:
 
 buildPythonPackage rec {
-  pname = "Deprecated";
-  version = "1.2.12";
+  pname = "deprecated";
+  version = "1.2.13";
 
   src = fetchPypi {
-    inherit pname version;
-    sha256 = "6d2de2de7931a968874481ef30208fd4e08da39177d61d3d4ebdf4366e7dbca1";
+    pname = "Deprecated";
+    inherit version;
+    sha256 = "sha256-Q6xTNdqQwxwkugKK9TapHUHVP55pAd2wIbzFcs5E440=";
   };
 
-  propagatedBuildInputs = [ wrapt ];
-  checkInputs = [ pytest ];
+  propagatedBuildInputs = [
+    wrapt
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "deprecated" ];
+
   meta = with lib; {
     homepage = "https://github.com/tantale/deprecated";
     description = "Python @deprecated decorator to deprecate old python classes, functions or methods";
-    platforms = platforms.all;
     license = licenses.mit;
     maintainers = with maintainers; [ tilpner ];
   };