Stonewall Inn on Sunday announced plans to drop Guinness over the beer company's sponsorship of New York City's St. Patrick's Day parade.

Organizers of the nation's oldest and largest St. Patrick's Day celebration steadfastly refuse to allow gay organizations to march in Monday's parade.

On Friday, Heineken dropped its sponsorship of the parade, saying that it is “passionate about equality for all people.” Mayor Bill de Blasio earlier this month marched in a gay-inclusive parade and announced that he would not participate in the city's St. Patrick's Day parade.

(Related: NYC Mayor Bill de Blasio marches in gay inclusive St. Patrick's Day parade.)

“It's time for Guinness, other sponsors and Irish New Yorkers to speak out in favor of an inclusive parade that welcomes the Irish spirit of love and family,” GLAAD President Sarah Kate Ellis said in an emailed statement.

GLAAD, community advocates, and the gay rights group Irish Queers will gather Monday at Stonewall Inn – considered the birthplace of the modern gay rights movement – to remove Guinness products from the bar's shelves.

Other bars joining the Guinness boycott include Pieces Bar and Hardware Bar.

(Related: Boston Mayor Marty Walsh boycotts St. Pat's Day parade over gay exclusion.)