diff --git a/pkgs/development/python-modules/beartype/default.nix b/pkgs/development/python-modules/beartype/default.nix
index a99da96fff26..dd1a4268a4aa 100644
--- a/pkgs/development/python-modules/beartype/default.nix
+++ b/pkgs/development/python-modules/beartype/default.nix
@@ -5,6 +5,7 @@
   fetchFromGitHub,
   hatchling,
   pytestCheckHook,
+  pythonAtLeast,
   typing-extensions,
 }:
 
@@ -29,6 +30,11 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "beartype" ];
 
+  # this test is not run upstream, and broke in 3.13 (_nparams removed)
+  disabledTests = lib.optionals (pythonAtLeast "3.13") [
+    "test_door_is_subhint"
+  ];
+
   meta = {
     description = "Fast runtime type checking for Python";
     homepage = "https://github.com/beartype/beartype";