Security officers at Sheldon Adelson’s Sands casino in Bethlehem made history last week, when they signed a union contract with the casino operator.

Last Wednesday, members of the International Union, Security, Police and Fire Professionals of America signed a three-year contract with Sands Casino Resort Bethlehem that will give its security guards an 8 percent pay increase—effective immediately—as well as a seniority structure and a greater say in work rules for its 146 members, The Morning Call reported.

David Hickey, president of the union, said the contract was approved in a 70-6 vote.

Under the contract, Hickey said most guards will receive a raise between $1 and $1.21 per hour, but they will have to pay union dues equivalent to 2.5 hours in wages every month.