The Saints players celebrate one of teh goals against Morton that took them into the last four.
St Johnstone have drawn Hibs in the League Cup semi-finals.
Ross County will face Celtic in the other tie.
The Perth side will hope to go one better than the previous time they got to the last four of the competition, when they lost to eventual winners Aberdeen at Tynecastle in 2014.
Saints do of course have better memories of their last national cup semi-final the same year, the day they beat the Dons in the Scottish Cup to set up the final they won against Dundee United.
The two semis will take place on the weekend of Saturday/Sunday January 30/31, with the final on Sunday March 13.
Saints have defeated Rangers and Morton to get to this stage, while Hibs have seen off Dundee United.
