Change is on the horizon for Circle K. The Phoenix-based company is in the midst of overhauling most of its 550 Arizona stores, according to the East Valley Tribune.

The stores will undergo architectural improvements, interior renovations as well as a boost in product selection, offering ready-to-eat foods like sandwiches, fruit cups and salads. The classic red and white logo will remain unchanged, officials said.

“This is a thriving market,” Larry Brueggemier, director of marketing, told the paper. “If we’re going to remain competitive, we have to invest.”

Brueggemier said that about 80% of the company’s stores will convert to the new look and format. The project is expected to be complete in about four years.

Company officials would not disclose the amount of money they are investing into the upgrades, but Brueggemier told the newspaper they have implemented the changes at about 180 stores.