McDonald's will close all five of its CosMc's test locations this summer, 18 months after introducing the beverage-focused concept at four restaurants in Texas and one in a Chicago suburb.

McDonald’s said Friday that it’s closing down CosMc’s, a new restaurant format it began piloting in the U.S. last year.

McDonald's will shutter all standalone CosMc's locations starting next month ager two years after launching the chain in 2023.