NL100SH AQo MPTK - River Entscheidung

UTG ($91.50)
MP ($10)
CO ($130.65)
Button ($67.54)
Hero (SB) ($106.62)
BB ($99.05)

Preflop: Hero is SB with Q :spade:, A :heart:
UTG calls $1, 3 folds, Hero bets $6, 1 fold, UTG calls $5

Flop: ($13) Q :heart:, K :heart:, J :heart: (2 players)
Hero bets $10, UTG calls $10

Turn: ($33) 3 :spade: (2 players)
Hero bets $24, UTG calls $24

River: ($81) 2 :club: (2 players)
Hero checks, UTG bets $40.5, Hero ?