Dress Storage

I ordered my dress this past weekend and the shop said it would take approximately 2-4 months to get in. They will store the dress for me until the wedding which isn't until August 2001.

My question is if the dress comes in at the latest March, will it yellow sitting in storage for 5 months? Do bridal shops take any precautions to prevent the dress from yellowing? I am just curious b/c of how yellow some the samples were.