Saracens centre Nick Tompkins will make his first Wales start in Saturday's Guinness Six Nations clash against Ireland.
Tompkins, who delivered a try-scoring debut off the bench when Wales beat Italy 42-0 five days ago, partners Hadleigh Parkes in midfield.
George North, a centre starter against the Azzurri, moves back to his familar wing position, replacing Johnny McNicholl.
Wales head coach Wayne Pivac has made no other changes to the starting line-up.
Switches among the replacements, though, see McNicholl being joined by prop Rhys Carre, who is available again after serving a suspension following his sending off in Saracens' Champions Cup victory over the Ospreys last month.
Scrum-half Gareth Davies and Gloucester back Owen Williams are also on the bench, together with Ospreys lock Adam Beard, who replaces an injured Cory Hill.
Wales team:
L Halfpenny (Scarlets); G North (Ospreys), N Tompkins (Saracens), H Parkes (Scarlets), J Adams (Cardiff); D Biggar (Northampton), T Williams (Cardiff); W Jones (Scarlets), K Owens (Scarlets), D Lewis (Cardiff), J Ball (Scarlets), A W Jones (Ospreys, capt), A Wainwright (Dragons), J Tipuric (Ospreys), T Faletau (Bath).
Replacements: R Elias (Scarlets), R Carre (Saracens), L Brown (Dragons), A Beard (Ospreys), R Moriarty (Dragons), G Davies (Scarlets), O Williams (Gloucester), J McNicholl (Scarlets).
