Can't add user to group - Group:write:admin

I am trying to add a user to a group, I am getting the error
“Invalid access token, does not contain scopes:[group:write:admin].”

When I tried to update my token, I only saw group:read:admin. How do I add the other permission?

@jared.millman You need to update the scopes associated with your Marketplace app, to which your credentials belong.If you do not see the scope there or are not able to authorize the scope, then please ask your admin to give you the relevant permission.