Wyo. Stat. Ann. § 34-4-109

A foreclosure sale may be postponed from time to time by inserting a notice of the postponement as soon as practicable in the newspaper in which the original advertisement was published and continuing the publication until the time to which the sale shall be postponed, at the expense of the party requesting the postponement, provided that the original advertisement is published at least once a week, over four (4) consecutive weeks, and the notice of postponement is published at least once a week, over two (2) consecutive weeks.