You can make changes to your coverage throughout the year, but you'll need proof of a qualified event (like a marriage, divorce, birth, death, etc.). There are four types of Life Events. Find out what they are here: https://help.goco.io/what-are-qualifying-life-events
You will then be able to specify exactly what changes you need to make:
Some changes will not be available. For example, if you don't have any dependents enrolled in coverage you will not be able to "Remove a Dependent".
Please Note: You will be asked to upload proof of your event.