Video: Ross County 0 Celtic 1
Celtic were made to wait until the closing stages before finally collecting maximum points against Ross County at the Global Energy Stadium.
Striker Leigh Griffiths grabbed their winner from a superb 78th minute free-kick to keep his colleagues once again setting the pace at the top of the table.
Fellow substitute Olivier Ntcham was then only denied by the woodwork from the edge of the area.
The visitors' incredible unbeaten domestic run therefore extends to a 64th game.
Video Link: SPFL