UFC 181 takes place on December 6th from the Mandalay Bay Events Center in Las Vegas, Nevada and the UFC has released the new fight card lineup as the heavyweight bout between Todd Duffee and Anthony Hamilton has been elevated to the main card. 
The new fight card lineup was recently updated on the UFC website.
Duffee and Hamilton were initially scheduled to kick off the preliminary card on Fox Sports 1, but they have been elevated to the main card with Holly Holm being out of the card with an injury.
Holm was scheduled to face Raquel Pennington, who will now meet Ashlee Evans-Smith and this fight will be the opening bout of the preliminary card on Fox Sports 1.
The updated UFC 181: Hendricks vs. Lawler II fight card is below.
Main Card: (PPV – 10 p.m. ET/7 p.m. PT)
Johny Hendricks (16-2) vs. Robbie Lawler (24-10, 1NC)
Anthony Pettis (17-2) vs. Gilbert Melendez (22-3)
Travis Browne (16-2-1) vs. Brendan Schaub (10-4)
Todd Duffee (8-2) vs. Anthony Hamilton (12-3)
Tony Ferguson (16-3) vs. Abel Trujillo (12-5, 1NC)
Preliminary Card: (Fox Sports 1 – 8 p.m. ET/5 p.m. PT)
Urijah Faber (31-7) vs. Francisco Rivera (10-3, 1NC)
Eddie Gordon (7-1) vs. Josh Samman (10-2)
Corey Anderson (4-0) vs. Jonathan Wilson (6-0)
Raquel Pennington (4-4) vs. Ashlee Evans-Smith (3-0)
Preliminary Card: (Fight Pass – 7 p.m. ET/4 p.m. PT)
Sergio Pettis (11-1) vs. Matt Hobar (9-2)
Alex White (10-1) vs. Clay Collard (13-5, 1NC)