**To modify an event subscription** The following ``modify-event-subscription`` example changes the source type of an event subscription. :: aws dms modify-event-subscription \ --subscription-name "my-dms-events" \ --source-type replication-task Output:: { "EventSubscription": { "CustomerAwsId": "123456789012", "CustSubscriptionId": "my-dms-events", "SnsTopicArn": "arn:aws:sns:us-east-1:123456789012:my-sns-topic", "Status": "modifying", "SubscriptionCreationTime": "2020-05-29 17:04:40.262", "SourceType": "replication-task", "Enabled": true } } For more information, see `Working with Events and Notifications <https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Events.html>`__ in the *AWS Database Migration Service User Guide*.