diff --git a/mangopay/resources.py b/mangopay/resources.py
index 8461ea9..8e56cd9 100644
--- a/mangopay/resources.py
+++ b/mangopay/resources.py
@@ -704,8 +704,8 @@ class RecurringPayInRegistration(BaseApiModel):
     user = ForeignKeyField(User, api_name='CreditedUserId')
     first_transaction_debited_funds = MoneyField(api_name='FirstTransactionDebitedFunds', required=True)
     first_transaction_fees = MoneyField(api_name='FirstTransactionFees', required=True)
-    billing = BillingField(api_name='Billing', required=True)
-    shipping = ShippingField(api_name='Shipping', required=True)
+    billing = BillingField(api_name='Billing', required=False)
+    shipping = ShippingField(api_name='Shipping', required=False)
     end_date = DateField(api_name='EndDate')
     frequency = CharField(api_name='Frequency')
     fixed_next_amount = BooleanField(api_name='FixedNextAmount')