Coors Brewers is hoping to reignite the ale category by giving its Caffrey's brand a new look.
The changes are intended to communicate the Irish "personality" of the ale with an emerald green can and Caffrey's Celtic symbol.
Multipacks of the beer will feature an image of a freshly poured pint.
Coors said the redesign was intended to position the beer as the "only modern, premium widget ale".
Coors director of marketing for premium beers, David Preston, said: "It is important that Caffrey's keeps its image.
"The redesign reaffirms Caffrey's positioning as a premium beer brand with a much younger age profile than other widget ales."