diff --git a/src/_secureaccesstokenauthorizer/tests/test_client_resource.py b/src/_secureaccesstokenauthorizer/tests/test_client_resource.py
index be45313d683e21db316ab7013a42e552db9670d4..a06a3638b563ded66aaba42ac8347e02d0773f77 100644
--- a/src/_secureaccesstokenauthorizer/tests/test_client_resource.py
+++ b/src/_secureaccesstokenauthorizer/tests/test_client_resource.py
@@ -184,9 +184,6 @@ def invalid_bodies():
                 not_payment_reference_numbers(),
             ),
         }).map(dumps),
-        fixed_dictionaries({
-            u"payment-reference-number": integers(),
-        }).map(dumps),
         # Not even JSON
         binary().filter(is_not_json),
     )