The invention provides stable aqueous pharmaceutical formulations comprising an anti-PDL1 antibody. The invention also provides methods for making such formulations and methods of using such formulations.L'invention concerne des formulations pharmaceutiques aqueuses stables comprenant un anticorps anti-PDL1. L'invention concerne en outre des méthodes d'élaboration de telles formulations et des méthodes d'utilisation de telles formulations.