Michael C. Hall tied the knot with girlfriend Morgan Macgregor on Monday!

The cute couple exchanged vows at New York City Hall, the actor's rep confirmed to ET.

No additional details about the wedding have yet been released.

PHOTOS: Celebs Who Had Secret Weddings

Hall, 45, and Macgregor, a Los Angeles-based book reviewer and novelist, began dating 2012. They made their first public appearance together on the red carpet at the 2012 Emmy Awards.

This is the third marriage for the Golden Globe winner, who was previously wed to actress Amy Spangler from 2002 to 2007, as well as his former Dexter co-star Jennifer Carpenter from 2008 to 2011.

Congrats to the happy couple!

WATCH: Celeb Weddings We Can't Wait For

Related Gallery

Celebs Who Had Secret Weddings