Accept/Reject CTA buttons on cards

I have to design a dashboard to help sellers to manage invoices addressed to them during the month. The invoices will arrive in "To do" tab. For each invoice we have two choices : "Accept" or "Reject" the document. When a document is rejected or accepted it moves to the appropriate section ("Rejected" tab or "Accepted" tab).

In "To do" tab I don't have any problem, I put two CTA buttons in each card ("Accept" and "Reject") with a high emphasis treatment on "Accept" button (which is positive and must common action).

My problem is for "Accepted" Tab (and the same for "Rejected"). The seller can see a list of accepted invoices but he can reconsider and refuse an invoice or just remove the Accepted state of it. For these cards I don't know how to design the buttons. I putted 2 outlined buttons (without high emphasis) and I do not know if it's understandable. Should I change and put contained button for one of the two ?

Please help me !