Livi, who host the champions on Wednesday (19:45 GMT), are one of only two Scottish sides to have beaten Neil Lennon's team this season.

Ryan Christie was sent off before goals by Scott Robinson and Lyndon Dykes gave Gary Holt's side victory in October.

"We're going to make mistakes here and there," said midfielder Brown, 34.

"But we need to make sure we don't do it consistently. We want to win every single game. It's not about us saying we want revenge, it's about us making sure that we've learned from our mistakes and how we can bounce back.

"We've done that from the Copenhagen game into the St Johnstone game. We did that after the Livingston game - we went on a great run."

Sunday's Scottish Cup victory over Saints sent the holders through to the semi-finals, where they will meet Aberdeen.

The 1-0 win in Perth came three days after Copenhagen knocked Lennon's men out of the Europa League.

"We're not perfect," added Brown. "We know that and we're not going to win every single game 5-0, 6-0.

"[Copenhagen] wasn't a great game. We didn't play as well as we probably should've done - but then we bounced back right away against St Johnstone."