Caley Thistle claimed the scalp of Premiership side Livingston with a 1-0 win which puts them into the Scottish Cup quarter finals.
Inverness produced an impressive display against the Lions, with Sean Welsh netting a second half free-kick which proved the difference between the sides.
The result advances John Robertson’s men into the last eight of the competition, just one round away from the semi-final stage they reached last season.
Inverness made two changes from the side which drew 1-1 with Alloa Athletic the previous weekend, with James Vincent and the injured Aaron Doran making way from David Carson and Sean Welsh.
Livi mounted early pressure without managing to trouble Mark Ridgers, with Steven Lawless striking over the bar on the turn, while at the other end Sean Welsh drove a low shot wide.
Miles Storey was highly involved throughout the first half, seeing a low drive hacked off the line following a surge down the right by Shaun Rooney, before the attacker cut inside from the left and fired a shot over after being played through by Tom Walsh on 31 minutes.
Inverness had defending to do before the interval, with both Kevin McHattie and Carl Tremarco making goal-line clearances.
Caley Jags made a strong start to the second half, with Welsh striking narrowly wide after being teed up by Storey.
Welsh was not to be denied on the hour mark however, when he curled a free-kick into Ryan Schofield’s bottom left corner from the edge of the box.
Livi pushed for a leveller as the match wore on, with their closest effort coming when Lyndon Dykes saw a strike held by Ridgers.