Mike McCarthy had been ruled out of the Emerging Ireland squad for the IRB Nations Cup due to a calf injury.
McCarthy will be replaced in the squad by Munster's Billy Holland. Dominic Ryan has been named as captain of the side.
Ulster pair Richard Lutton and Stuart McCloskey have been called up to replace Rodney Ah You and Noel Reid, who were called into the Ireland senior squad.
Emerging Ireland's first game of the tournament takes place on Friday, 13 June against Russia in Romania.