He made his first start for the province in November.
Birr's Michael Milne has signed his first professional contract with Leinster.
The 22 year-old prop makes the step up from the academy set up.
Milne has faired well when called upon in the PRO14 this season since making his first start for the province in November against the Ospreys.
๐จโ ๐๐ฒ๐ป๐ผ๐ฝ ๐ข๐ฎ๐ท๐ฒ๐ธ๐ป ๐๐ธ๐ท๐ฝ๐ป๐ช๐ฌ๐ฝ@michaelmilne7 has been promoted from the #LeinsterRugby Academy to the Senior squad. ๐#FromTheGroundUp pic.twitter.com/K4Fcl7iND1
— Leinster Rugby (@leinsterrugby) April 15, 2021