In Hathaway v. General Mills, Inc., 711 S.W.2d 227 (Tex. 1986), the Court outlined the manner in which an employer may change the terms of an at-will employment contract. The Court held that the party asserting a change to an at-will employment contract must prove two things: (1) notice of the change; (2) acceptance of the change. Id. at 229. The Court stated that "to prove notice, an employer asserting a modification must prove that he unequivocally notified the employee of definite changes in employment terms." Id. Yet we made clear that when an employer notifies an employee of changes to the at-will employment contract and the employee "continues working with knowledge of the changes, he has accepted the changes as a matter of law." Id.