(CNN) - Is Alex Sink sinking? Maybe not.
A new Mason-Dixon poll released Friday indicates Florida's Democratic gubernatorial nominee holds a small lead over her GOP challenger, Rick Scott. Still, though, the two candidates are statistically tied.
Forty-four percent of likely voters say they support Sink, while 40 percent say they'll back Scott. Three percent support other candidates and 13 percent are undecided.
The same poll last month had Sink leading Scott 47 to 40, but Mason-Dixon pollster Brad Coker said "Scott's support...is flat and the only change in the race is a shifting of Sink voters into the undecided column."
The race is even closer among independent voters. Nearly a fifth of them are undecided and those who have chosen a candidate support Sink over Scott by just two points.
"Republican candidates usually must carry the independent vote by about 15-points to win statewide," Coker noted.
A CNN/Time/Opinion Research Corporation poll conducted Sept. 24-28 indicated Scott held a 47 to 45 point lead over Sink.
The Mason-Dixon poll was conducted Oct. 4-6 by phone with 625 likely Florida voters. It carries a sampling error of plus or minus 4 percentage points.