diff --git a/tests/anonymisers.py b/tests/anonymisers.py
index 0501741..1dbc619 100644
--- a/tests/anonymisers.py
+++ b/tests/anonymisers.py
@@ -26,7 +26,7 @@ def anonymise_first_name(self, obj: User) -> None:
 class UserRedacter(BaseAnonymiser):
     model = User
 
-    field_redactions = {
+    custom_field_redactions = {
         "first_name": "FIRST_NAME",
         "last_name": "LAST_NAME",
         "email": Concat(Value("user_"), F("id"), Value("@example.com")),