Workers at three Rise cannabis dispensaries in the Chicagoland area plan to strike the day before 4/20.
The Teamsters said it will be the first time three dispensaries owned by the same company go on strike at the same time.
Striking workers plan to picket outside of Rise dispensaries in Niles and Joliet, Illinois.
According to Green Market Report, union officials are expecting more than 100 employees to participate.
The workers are demanding the company bargain in good faith and present them with a contract that includes better wages and retirement contributions.
Rise is a subsidiary of Green Thumb Industries, one of the largest multi-state cannabis operators in the U.S.