NEW YORK — Starting Thursday, Target will now match its online prices with more than two dozen online competitors including Amazon.com and Walmart.com.

The change in policy marks a big step for the Minneapolis-based retailer, which until now only matched prices at its own stores. And the retailer is increasing the number of online rivals that it will match from five to 29. That includes stores that require membership, like Costco and Sam’s Club.

Target made a splash last holiday shopping season when it offered free shipping. Earlier this year, it permanently lowered its free shipping threshold to $25 from $50.