UPS has told drivers to stop picking up packages from some large retailers during the holiday season.<br />Business Insider reports the move is just temporary.<br />This year is expected to be busier than usual for carries.<br />More retailers are relying on online orders for holiday shopping.<br />UPS has told drivers to stop picking up packages from some large retailers as the holiday shipping season picks up.<br />"UPS continues to work closely with our largest customers to steer volume to capacity and ensure the UPS network is reliable for all customers," the company said in a statement to Business Insider.