diff --git a/pkgs/development/python-modules/pytest-mock/default.nix b/pkgs/development/python-modules/pytest-mock/default.nix
index c73b35e6f590..f956a62e1a5a 100644
--- a/pkgs/development/python-modules/pytest-mock/default.nix
+++ b/pkgs/development/python-modules/pytest-mock/default.nix
@@ -1,5 +1,6 @@
 { lib
 , buildPythonPackage
+, pythonAtLeast
 , pythonOlder
 , fetchPypi
 , pytest
@@ -35,6 +36,12 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
+  disabledTests = lib.optionals (pythonAtLeast "3.11") [
+    # Regression in 3.11.7 and 3.12.1; https://github.com/pytest-dev/pytest-mock/issues/401
+    "test_failure_message_with_name"
+    "test_failure_message_with_no_name"
+  ];
+
   pythonImportsCheck = [ "pytest_mock" ];
 
   meta = with lib; {