No real reads on UTG, however I had not seen him get aggressive in a hand like this to date. Anyone call the river bet? Any argument to raise the flop?

Party Poker
No Limit Holdem Ring game
Blinds: $0.50/$1
6 players


Stack sizes:
UTG: $63.90
UTG+1: $109.94
Hero: $366.13
Button: $16.72
SB: $116.50
BB: $121.92

Pre-flop: (6 players) Hero is CO with
UTG folds, UTG+1 calls, Hero raises to $5, 3 folds, UTG+1 calls.

Flop: ($11.5, 2 players)
UTG+1 bets $8, Hero calls.

Turn: ($27.5, 2 players)
UTG+1 bets $17, Hero calls.

River: ($61.5, 2 players)
UTG+1 bets $38, Hero ???

raise turn and fold to a push?