Firestone Walker Brewing Co.’s Parabola will be available again next month.

According to a post on the Paso Robles, Calif.-based brewery’s Barrelworks Facebook page, the official Firestone Walker Barrelworks account answered a question about when Parabola would be released, responding, “Parabola gets released April 2nd.”

Originally released in 2009, the newest incarnation of the extremely popular 13.1 percent ABV Russian imperial stout is brewed with Zeus and hallertau hops along with nine different malts before being aged in a blend of bourbon barrels previously used for Buffalo Trace, Elijah Craig, Four Roses, Pappy Van Winkle and Woodford Reserve. Parabola is part of the Proprietor’s Vintage Series.

Although there has not been confirmation yet, Parabola has been packaged in 22-ounce bottles since it was first released. An email sent to the brewery for additional information was not immediately returned.

Pictured: 2015 Parabola.