Shels join Athlone, Cork City and Sligo Rovers in the last four.
Shelbourne are into the semi finals of the Women's FAI Cup.
They beat Shamrock Rovers 1-nil at Tallaght Stadium last night with a goal by sub Megan Smyth Lynch.
Shels join Athlone, Cork City and Sligo Rovers in the last four.

ROI Under 21 Play Two International Friendlies Next Month
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Ulster Name Team For Tomorrow's Challenge Cup Final Against Montpellier
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Aston Villa Crowned Europa League Champions
Thursday Morning Sports Update
Aston Villa Keep Hopes Alive For Clash Against Freiburg In The Europa League Final Tonight