diff --git a/test/test_cpp_extensions_open_device_registration.py b/test/test_cpp_extensions_open_device_registration.py
index ba90aad46fe..230cce990b8 100644
--- a/test/test_cpp_extensions_open_device_registration.py
+++ b/test/test_cpp_extensions_open_device_registration.py
@@ -534,6 +534,10 @@ class TestCppExtensionOpenRgistration(common.TestCase):
         np.__version__ < "1.25",
         "versions < 1.25 serialize dtypes differently from how it's serialized in data_legacy_numpy",
     )
+    @unittest.skipIf(
+        np.__version__ >= "2.1",
+        "weights_only failure on numpy >= 2.1",
+    )
     def test_open_device_numpy_serialization(self):
         """
         This tests the legacy _rebuild_device_tensor_from_numpy serialization path