Investigators said a suspect walked into the store at 1120 Winchester Road around 11:22 p.m.
Witnesses told police the suspect implied a weapon, demanded money, got it and left.
No one was hurt.
Anyone with information in the case should call Lexington Police at 859-258-3600 or 859-258-3700 or Bluegrass Crime Stoppers at 859-253-2020.
You can also submit tips by phone. Simply text: "tips2020" plus your message to CRIMES (274637).
To submit a tip or information online, click here.