Sort by multiple columns, using nulls first on one of them

Given a members table, having the following columns: accepted_at datetime , updated_at datetime NOT NULL Given this query: select * from members order by accepted_at DESC NULLS FIRST, updated_at DESC We invariably always want accepted_at IS NULL at the beginning of the list, then the most recent members updated following in the list. The above query prioritizes on the updated_at column, so I end up with accepted members at the beginning of list.