The Toronto Zoo will re-open on Thursday.

Unionized employees voted Sunday to ratify a new four year collective agreement, exactly one month after they went on strike. The deal has also been ratified by the members of the zoo’s board of management.

Some 400 zoo workers are represented by CUPE Local 1600 and include zookeepers and horticulturalists. They cited concerns about job security as their main point of contention which led to the walkout.

During the strike, the animals at the zoo were cared for by management staff, many of whom are former zookeepers.