WASHINGTON (AP) — Americans who passed part, but not all, of the GED test are rushing to finish it before a new version rolls out in January. About 1 million Americans who took the high school equivalency exam could be affected.

GED scores will be wiped out when the new version arrives. It's the first update to the test in more than a decade. Test takers will have to use a computer instead of pencil and paper.

And the cost will be significantly higher, at $120. There have been public service campaigns throughout the country for more than a year encouraging adults to come in and finish the GED test. Some centers are expanding hours to accommodate demand.