turn straight Vs paired river

[tiswin]

Hi folks,
I got stuck on this one. What do you think?
villain is new to table

PokerStars No-Limit Hold'em, $0.02 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP2 ($5.40)
CO ($2)
Hero ($4.24)
SB ($2.31)
BB ($6.89)
UTG ($2.93)
UTG+1 ($3.26)
MP1 ($2.98)

Preflop: Hero is Button with 5, 7. CO posts a blind of $0.02.
2 folds, MP1 calls $0.02, 1 fold, CO (poster) checks, Hero calls $0.02, SB completes, BB checks.

Flop: ($0.10) 4, 6, 9 (5 players)
SB bets $0.02, BB calls $0.02, MP1 calls $0.02, CO raises to $0.08, Hero calls $0.08, SB calls $0.06, BB calls $0.06, MP1 calls $0.06.

Turn: ($0.50) 3 (5 players)
SB checks, BB checks, MP1 checks, CO bets $0.38, Hero raises to $0.76, SB folds, BB folds, MP1 folds, CO calls $0.38.

River: ($2.02) 6 (2 players)
CO bets $0.28, Hero ????

[Warpe]

This is a fold for me preflop, but as played pop him up to about $1.60 on the turn and put the rest in on the river. His river bet is really weak.

[martindcx1e]

raise the turn bigtime