Darrell Clarke's men will take on the Cobblers at the Memorial Stadium on Saturday 7th January as originally scheduled.
Rob Page's side exited the Emirates FA Cup last night at the hands of Evo-Stik Northern Premier Division side Stourbridge thanks to Jack Duggan's 85th minute winner.
Anyone who requires a wheelchair or Ambulant disabled should contact the club's Ticket Office Manager Clare McDonagh direct on 0117 952 4001.