Tiffani Thiessen expecting baby No. 2

Brady Smith and Tiffani Thiesse attend the Downtown Calvin Klein with The Cinema Society screening of IFC Films' "Ain't Them Bodies Saints" at the Museum of Modern Art on Aug. 13, 2013, in New York.

Andrew H. Walker/Getty Images

Tiffani Thiessen is pregnant for a second time.

She and husband, Brady Smith, are expecting their second child together this year. The 40-year-old actress revealed the news on Instagram:

The couple, who wed in 2005, are already parents to 4-year-old daughter Harper.

In December, Thiessen spoke with CBS News about spending the holidays with her daughter.

"I always love to find new things -- now that I have a kid, she's four and a half -- finding new adventures to do during her holiday break," she said. "So like ice skating, and going to see her first 'Nutcracker' this year, which I'm super super-excited to go take her."

Thiessen recently wrapped up a six-year stint on the USA Network series "White Collar," starring Golden Globe winner Matt Bomer.

"Six years, and six seasons on that show -- very sad but I guess like all good things, they have to come to an end," she told CBS News.