diff --git a/accountant/fields.py b/accountant/fields.py
deleted file mode 100644
index e19b6fc..0000000
--- a/accountant/fields.py
+++ /dev/null
@@ -1,44 +0,0 @@
-# vim: set tw=80 ts=4 sw=4 sts=4:
-"""
-    This file is part of Accountant.
-
-    Accountant is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    Accountant is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with Accountant.  If not, see <http://www.gnu.org/licenses/>.
-"""
-from flask_restplus import marshal, fields
-
-
-class Object(fields.Raw):
-    """
-    Field to marshal an object with fields.
-
-    SQLAlchemy rows are viewed as tuples by Restful marshaller, and must be
-    translated into a dict before marshaling.
-    """
-    def __init__(self, model, **kwargs):
-        """
-        :param model: the target model of the object.
-        """
-        self.model = model
-
-        super(Object, self).__init__(**kwargs)
-
-    def format(self, value):
-        # First transform object in dict with fields in attribute.
-        result = {key: getattr(value, key, None) for key in self.model.keys()}
-
-        # Marshal the dict
-        return marshal(result, self.model)
-
-    def schema(self):
-        return self.model.__schema__
diff --git a/accountant/views/accounts.py b/accountant/views/accounts.py
index c3c2a2e..d774eb2 100644
--- a/accountant/views/accounts.py
+++ b/accountant/views/accounts.py
@@ -16,14 +16,12 @@
 """
 import dateutil.parser
 
-from flask_restplus import Namespace, Resource, fields, marshal_with_field
+from flask_restplus import Namespace, Resource, fields
 
 from ..models import db
 from ..models.accounts import Account
 from ..models.operations import Operation
 
-from ..fields import Object
-
 from .users import requires_auth
 
 
@@ -144,7 +142,7 @@ class AccountListResource(Resource):
 
     @requires_auth
     @ns.response(200, 'OK', [account_model])
-    @marshal_with_field(fields.List(Object(account_model)))
+    @ns.marshal_list_with(account_model)
     def get(self):
         """ Returns accounts with their balances."""
 
@@ -154,7 +152,7 @@ class AccountListResource(Resource):
     @ns.expect(account_model)
     @ns.response(201, 'Account created', account_model)
     @ns.response(406, 'Invalid account data')
-    @marshal_with_field(Object(account_model))
+    @ns.marshal_with(account_model)
     def post(self):
         """Create a new account."""
 
@@ -195,7 +193,7 @@ class AccountResource(Resource):
 
     @requires_auth
     @ns.response(200, 'OK', account_model)
-    @marshal_with_field(Object(account_model))
+    @ns.marshal_with(account_model)
     def get(self, id):
         """Get an account."""
 
@@ -215,7 +213,7 @@ class AccountResource(Resource):
     @ns.expect(account_model)
     @ns.response(200, 'OK', account_model)
     @ns.response(406, 'Invalid account data')
-    @marshal_with_field(Object(account_model))
+    @ns.marshal_with(account_model)
     def post(self, id):
         """Update an account."""
 
@@ -248,7 +246,7 @@ class AccountResource(Resource):
 
     @requires_auth
     @ns.response(204, 'Account deleted', account_model)
-    @marshal_with_field(Object(account_model))
+    @ns.marshal_with(account_model)
     def delete(self, id):
         """Delete an account."""
 
@@ -278,7 +276,7 @@ class SoldsResource(Resource):
             401: 'Unauthorized',
             404: 'Account not found'
         })
-    @marshal_with_field(Object(solds_model))
+    @ns.marshal_with(solds_model)
     def get(self, id):
         """Get solds for a specific account and date range."""
 
@@ -308,7 +306,7 @@ class BalanceResource(Resource):
             404: 'Account not found'
         })
     @ns.expect(range_parser)
-    @marshal_with_field(Object(balance_model))
+    @ns.marshal_with(balance_model)
     def get(self, id):
         """Get account balance for a specific date range."""
 
@@ -340,7 +338,7 @@ class CategoryResource(Resource):
             404: 'Account not found'
         })
     @ns.expect(range_parser)
-    @marshal_with_field(fields.List(Object(category_model)))
+    @ns.marshal_list_with(category_model)
     def get(self, id):
         """Get account category balances for a specific date range."""
 
@@ -362,7 +360,7 @@ class OHLCResource(Resource):
             404: 'Account not found'
         })
     @ns.expect(range_parser)
-    @marshal_with_field(fields.List(Object(ohlc_model)))
+    @ns.marshal_list_with(ohlc_model)
     def get(self, id):
         """Get OHLC data for a specific date range and account."""
 
diff --git a/accountant/views/operations.py b/accountant/views/operations.py
index 52224c7..7fc50fc 100644
--- a/accountant/views/operations.py
+++ b/accountant/views/operations.py
@@ -16,7 +16,7 @@
 """
 import dateutil.parser
 
-from flask_restplus import Namespace, Resource, fields, marshal_with_field
+from flask_restplus import Namespace, Resource, fields
 
 from ..models import db
 from ..models.accounts import Account
@@ -24,8 +24,6 @@ from ..models.operations import Operation
 
 from .users import requires_auth
 
-from ..fields import Object
-
 
 # pylint: disable=invalid-name
 ns = Namespace('operation', description='Operation management')
@@ -115,7 +113,7 @@ class OperationListResource(Resource):
     @requires_auth
     @ns.response(200, 'OK', [operation_with_sold_model])
     @ns.expect(parser=account_range_parser)
-    @marshal_with_field(fields.List(Object(operation_with_sold_model)))
+    @ns.marshal_list_with(operation_with_sold_model)
     def get(self):
         """Get operations with solds for a specific account."""
 
@@ -132,7 +130,7 @@ class OperationListResource(Resource):
     @ns.response(201, 'Operation created', operation_model)
     @ns.response(404, 'Account not found')
     @ns.response(406, 'Invalid operation data')
-    @marshal_with_field(Object(operation_model))
+    @ns.marshal_with(operation_model)
     def post(self):
         """Create a new operation."""
 
@@ -176,7 +174,7 @@ class OperationResource(Resource):
 
     @requires_auth
     @ns.response(200, 'OK', operation_model)
-    @marshal_with_field(Object(operation_model))
+    @ns.marshal_with(operation_model)
     def get(self, id):
         """Get operation."""
 
@@ -194,7 +192,7 @@ class OperationResource(Resource):
     @ns.expect(operation_model)
     @ns.response(200, 'OK', operation_model)
     @ns.response(406, 'Invalid operation data')
-    @marshal_with_field(Object(operation_model))
+    @ns.marshal_with(operation_model)
     def post(self, id):
         """Update an operation."""
 
@@ -227,7 +225,7 @@ class OperationResource(Resource):
 
     @requires_auth
     @ns.response(204, 'Operation deleted', operation_model)
-    @marshal_with_field(Object(operation_model))
+    @ns.marshal_with(operation_model)
     def delete(self, id):
         """Delete an operation."""
 
diff --git a/accountant/views/scheduled_operations.py b/accountant/views/scheduled_operations.py
index 4d45a02..0d3e078 100644
--- a/accountant/views/scheduled_operations.py
+++ b/accountant/views/scheduled_operations.py
@@ -14,7 +14,7 @@
     You should have received a copy of the GNU Affero General Public License
     along with Accountant.  If not, see <http://www.gnu.org/licenses/>.
 """
-from flask_restplus import Namespace, Resource, fields, marshal_with_field
+from flask_restplus import Namespace, Resource, fields
 
 from sqlalchemy import true
 
@@ -25,8 +25,6 @@ from ..models.scheduled_operations import ScheduledOperation
 
 from .users import requires_auth
 
-from ..fields import Object
-
 # pylint: disable=invalid-name
 ns = Namespace(
     'scheduled_operation',
@@ -92,7 +90,7 @@ class ScheduledOperationListResource(Resource):
     @requires_auth
     @ns.expect(account_id_parser)
     @ns.response(200, 'OK', [scheduled_operation_model])
-    @marshal_with_field(fields.List(Object(scheduled_operation_model)))
+    @ns.marshal_list_with(scheduled_operation_model)
     def get(self):
         """Get all scheduled operation for an account."""
 
@@ -105,7 +103,7 @@ class ScheduledOperationListResource(Resource):
     @ns.response(200, 'OK', scheduled_operation_model)
     @ns.response(404, 'Account not found')
     @ns.response(406, 'Invalid operation data')
-    @marshal_with_field(Object(scheduled_operation_model))
+    @ns.marshal_with(scheduled_operation_model)
     def post(self):
         """Add a new scheduled operation."""
 
@@ -153,7 +151,7 @@ class ScheduledOperationResource(Resource):
 
     @requires_auth
     @ns.response(200, 'OK', scheduled_operation_model)
-    @marshal_with_field(Object(scheduled_operation_model))
+    @ns.marshal_with(scheduled_operation_model)
     def get(self, id):
         """Get scheduled operation."""
 
@@ -171,7 +169,7 @@ class ScheduledOperationResource(Resource):
     @ns.response(200, 'OK', scheduled_operation_model)
     @ns.response(406, 'Invalid scheduled operation data')
     @ns.expect(scheduled_operation_model)
-    @marshal_with_field(Object(scheduled_operation_model))
+    @ns.marshal_with(scheduled_operation_model)
     def post(self, id):
         """Update a scheduled operation."""
 
@@ -209,7 +207,7 @@ class ScheduledOperationResource(Resource):
     @requires_auth
     @ns.response(200, 'OK', scheduled_operation_model)
     @ns.response(409, 'Cannot be deleted')
-    @marshal_with_field(Object(scheduled_operation_model))
+    @ns.marshal_with(scheduled_operation_model)
     def delete(self, id):
         """Delete a scheduled operation."""
 
diff --git a/accountant/views/users.py b/accountant/views/users.py
index 1bd80ea..f63c165 100644
--- a/accountant/views/users.py
+++ b/accountant/views/users.py
@@ -20,9 +20,7 @@ from functools import wraps
 import arrow
 
 from flask import request, g, current_app as app
-from flask_restplus import Namespace, Resource, fields, marshal_with_field
-
-from ..fields import Object
+from flask_restplus import Namespace, Resource, fields
 
 from ..models.users import User
 
@@ -144,7 +142,7 @@ class LoginResource(Resource):
         responses={
             200: ('OK', user_model)
         })
-    @marshal_with_field(Object(user_model))
+    @ns.marshal_with(user_model)
     def get(self):
         """Get authenticated user information."""