Starting July 1, ride-hailing fares to Boston Logan Airport may rise as part of a tentative agreement between the Massachusetts Port Authority, Uber, and Lyft.

Massport officials said the hikes are necessary to raise money for airport infrastructure improvements and to incentivize more passengers to use public transit or carpool to get to the airport.

The fees to take an Uber or Lyft to and from Logan International Airport are going up — but not by as much as originally proposed. Here's what to know about the change.