diff --git a/nova/notifications/objects/request_spec.py b/nova/notifications/objects/request_spec.py
index 587c693c1642..28ca6baf042b 100644
--- a/nova/notifications/objects/request_spec.py
+++ b/nova/notifications/objects/request_spec.py
@@ -325,21 +325,18 @@ class SchedulerRetriesPayload(base.NotificationPayloadBase):
 @nova_base.NovaObjectRegistry.register_notification
 class CellMappingPayload(base.NotificationPayloadBase):
     # Version 1.0: Initial version
-    VERSION = '1.0'
+    # Version 2.0: Remove transport_url and database_connection fields.
+    VERSION = '2.0'
 
     SCHEMA = {
         'uuid': ('cell', 'uuid'),
         'name': ('cell', 'name'),
-        'transport_url': ('cell', 'transport_url'),
-        'database_connection': ('cell', 'database_connection'),
         'disabled': ('cell', 'disabled'),
     }
 
     fields = {
         'uuid': fields.UUIDField(),
         'name': fields.StringField(nullable=True),
-        'transport_url': fields.StringField(),
-        'database_connection': fields.StringField(),
         'disabled': fields.BooleanField(default=False),
     }
 
diff --git a/nova/tests/functional/notification_sample_tests/test_instance.py b/nova/tests/functional/notification_sample_tests/test_instance.py
index 7161eda67e09..a62bc1f92472 100644
--- a/nova/tests/functional/notification_sample_tests/test_instance.py
+++ b/nova/tests/functional/notification_sample_tests/test_instance.py
@@ -957,14 +957,12 @@ class TestInstanceNotificationSample(
             'nova_object.data': {
                 'aggregates': None,
                 'cell': {
-                    'nova_object.version': '1.0',
+                    'nova_object.version': '2.0',
                     'nova_object.namespace': 'nova',
                     'nova_object.name': 'CellMappingPayload',
                     'nova_object.data': {
-                        'database_connection': cell1.database_connection,
                         'disabled': False,
                         'name': u'cell1',
-                        'transport_url': u'fake://nowhere/',
                         'uuid': cell1.uuid
                     }
                 }
diff --git a/nova/tests/unit/notifications/objects/test_notification.py b/nova/tests/unit/notifications/objects/test_notification.py
index f76fbb3b73ec..ffe2469bf799 100644
--- a/nova/tests/unit/notifications/objects/test_notification.py
+++ b/nova/tests/unit/notifications/objects/test_notification.py
@@ -370,7 +370,7 @@ notification_object_data = {
     'AuditPeriodPayload': '1.0-2b429dd307b8374636703b843fa3f9cb',
     'BandwidthPayload': '1.0-ee2616a7690ab78406842a2b68e34130',
     'BlockDevicePayload': '1.0-29751e1b6d41b1454e36768a1e764df8',
-    'CellMappingPayload': '1.0-cf7faeb3cdd6b0c742ff74c80b88fb11',
+    'CellMappingPayload': '2.0-8acd412eb4edff1cd2ecb9867feeb243',
     'ComputeTaskNotification': '1.0-a73147b93b520ff0061865849d3dfa56',
     'ComputeTaskPayload': '1.0-e3d34762c14d131c98337b72e8c600e1',
     'DestinationPayload': '1.0-4ccf26318dd18c4377dada2b1e74ec2e',