You can not claim a spouse as a dependent.
See page 11 of IRS Publication 501 which says:
“Your spouse is never considered your dependent.”
You can find IRS Pub 501 at this link:
https://www.irs.gov/pub/irs-pdf/p501.pdfBut you can file as married filing jointly, which accomplishes the same thing - you get a personal exemption for both of you.
