Dundee United closed the gap on third-placed Motherwell to four points thanks to a 2-1 win against Inverness CT at Tannadice on Wednesday.
Ryan Gauld broke the deadlock early in the second half and Ryan Dow doubled United's advantage when he seized on a goalkeeping error with 15 minutes to go.
Liam Polworth pulled one back for Caley Thistle with a stunning 30-yarder but Jackie McNamara's men held on.