This article provides answers for InVision V6
To confirm your version, check the upper right corner of your dashboard. On V7? Check out this article instead.
To update the name on your account:
1. Sign in to the account.
2. Click on your name at the top right side of the page.
3. Click View Profile.
4. Make any necessary edits in the Name field.
5. Click Update Settings.

To update the name or any other details that appear in your invoices, please check out this article: How do I update the account details on my invoice?