You may need to rethink that trip to the grocery store. As many as 3300 Safeway workers could be hitting the picket lines on Monday.

They could take strike action if a new agreement cannot be reached by then.

Negotiations are ongoing between Safeway and the United Food and Commercial Workers Union.

So far those talks have been fruitless and both sides are planning for a possible strike.

Safeway took out ads in both Winnipeg newspapers on Wednesday advertising a job fair for temporary workers.

The UFCW says strike headquarters are going up at all Manitoba Safeway stores as well.

Union officials tell CTV News there will be a vote on Sunday.

They hope to be voting on a recommended agreement, but if that is not the case, workers will vote on the company's last offer.

If it is rejected, Safeway workers will be on the picket lines Monday morning.