Kohl’s Corp. will significantly boost its holiday season hiring this year, including a huge staffing increase at its warehouses, which struggled to fill customers’ online orders on time last Christmas.

Kohl’s will place 9,300 temps at its distribution centers — nearly half again as many as the 6,400 it hired for the warehouses last year.

Last year, customers showered Kohl’s and other retailers with complaints after the merchants failed to deliver promised gifts in time to be opened on Christmas. Afterward, Kohl’s vowed to improve its performance by adding distribution capacity and increasing the number of stores able to directly fill online orders from nearby customers, rather than routing the work through a distant warehouse.

Beyond the big bump in the workforce at the distribution centers, Kohl’s will hire an average of 50 temps per store, up from 40 last year.

All told, Kohl’s will hire more than 67,000 seasonal workers, compared with about 53,000 in 2013.

Menomonee Falls, Wisconsin-based Kohl’s is one of the country’s largest retailers, with 1,160 stores and three more due to open late this month.