Arsenal lead rivals Tottenham Hotspur in the battle for third spot in the Premier League, with Chelsea close behind, but in order to challenge the Manchester clubs dominance the Gunners will have to improve their squad over the summer.
The north Londoners have already been linked with a move for Lukas Podolski, but the rumours have been denied by the club.
Speaking to the Arsenal official website, Arsene Wenger said: "We will not be a lot on the market, quantity-wise I mean. Quality-wise, certainly."
The Frenchman is happy with the size of his squad but knows that to keep playing Champions League football - with the ambition shown by Spurs and Liverpool this season - Arsenal need to find quality.
"The [maximum] number of the squad is 25," he continued. "We have many players out on loan and we will take a gamble if we find top, top quality players."
Last summer Arsenal fans were not happy with the departures of Samir Nasri to Manchester City and the return of Cesc Fabregas to Barcelona. Yossi Benayoun and Mikel Arteta were brought in to fill the void, but were seen as only a short-term measure.
The transfers were made last minute on deadline day and the Arsenal boss admits: "Last year was terrible for us because we finished [transfers] on August 31 at 11.55pm and we do not want to repeat that of course."
Wenger is looking for additions in the summer but was quick to point out that key players have been missing in the current campaign.
"Don't forget we must have many players on loan and we have not had Jack Wilshere or About Diaby for the whole season," he concluded.
"These players will be back and it means that number and quality-wise we are strong because we are in the position we are in without these players."