MINNEAPOLIS — Target Corp. said Thursday it is bumping its base pay by one dollar so that its lowest-paid workers will earn at least $13 an hour starting in June.

It is an incremental boost on the way to Target’s pledge to pay all of its workers a minimum of $15 an hour by the end of 2020.

The company declined to say how many front-line workers would be affected by the pay hike, saying only that it would be in the “tens of thousands.”

Retailers are competing for labor as the economy stays relatively strong. Job requirements are shifting as retailers process more online sales and stores become shipping hubs and pick-up spots for customers who don’t want to wait for their online orders to arrive in the mail.

Other retailers have already begun offering a $15 base wage. Amazon hit the mark last October ahead of the holiday hiring. In early March, warehouse retailer Costco announced its second wage hike in less than a year to raise base hourly pay to $15.

Walmart’s minimum wage is $11. Last month the nation’s largest company offered an attendance bonus for workers who limited unplanned absences.