For the first time in nearly 10 years, on-street parking in Cambridge just got a little pricier.

New parking meter rates rolled out Monday raised the price to park at most spaces by 25 cents, to $1.25 per hour.

The increase, the first since 2008, is part of a new pricing plan that sets rates based on demand. In hot spots like Harvard Square, the price to park will be $1.50 per hour. But in less popular areas, the hourly rate will remain at $1.00, according to the city.