A fine 4-2 win over Kilmarnock at Rugby Park on Sunday, secured by Leigh Griffiths' hat-trick, took the visitors into Monday's last-four draw at Hampden along with Celtic, Dundee United and First Division Falkirk.
Hibs have not won the competition since 1902 and the huge travelling support who enjoyed their trip to Ayrshire left hoping, again, that it could be their year.
However, Hibs boss Fenlon, mindful of the fact that his side are in sixth place in the SPL and only one point ahead of Killie and Dundee United, was reluctant to look any further than next Sunday's game against Edinburgh rivals Hearts at Easter Road.
He said: "It is a good feeling to be in another semi-final but we are just thinking of Hearts to be honest. That's the next game. That's all we can worry about and I am going to make sure we are prepared for that.
"But I was delighted with the performance (on Sunday).
"Leigh is a special player. It is not just the goals - his movement is different class, but I think there were good performances all round."