diff --git a/py_clob_client/client.py b/py_clob_client/client.py
index a63958f..afc21d6 100644
--- a/py_clob_client/client.py
+++ b/py_clob_client/client.py
@@ -616,7 +616,7 @@ def drop_notifications(self, params: DropNotificationParams = None):
         )
         return delete(url, headers=headers)
 
-    def get_balance_allowance(self, params: BalanceAllowanceParams = None):
+    def get_balance_allowance(self, params: BalanceAllowanceParams):
         """
         Fetches the balance & allowance for a user
         Requires Level 2 authentication