United Parcel Service has placed an order for 19 Boeing 767 freighters, the U.S. planemaker announced on Tuesday, citing increased demand for air cargo due to an increase in e-commerce.

The agreement adds to a "record-breaking year" for Boeing freighter sales, which include 80 solid orders for new widebody freighters and more than 80 orders for Boeing Converted Freighters, according to the planemaker.

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After experiencing epidemic lows, the freighter market has been a rare bright spot for planemakers, as a surge in internet shopping, supply chain disruptions, and a decline in passenger plane trips have fuelled demand.

UPS, which has benefited greatly from the widespread shift to online shopping, plans to take delivery of planes between 2023 and 2025, according to UPS U.S. Operations President Nando Cesarone.

The new planes will allow UPS, the Freighter's launch customer, to meet predicted short- and long-term freight demand, according to Boeing.

UPS has ordered 91 of the aircraft since the model's introduction in 1995, according to the statement.

Over the next 20 years, Boeing, which controls 90% of the freighter market, predicts a 4% annual increase in air cargo demand.