The team earned their third consecutive 1-0 win, thanks to Artem Dovbyk's goal from a well-executed corner kick just before halftime.
Ranieri, who will retire from football at 73 after the season ends, expressed his satisfaction with the team's performance.
"I always ask for the best from my players," Ranieri said. "I want them to be happy with what we achieve this season, with no regrets or complaints when we're on vacation next summer."
Ranieri acknowledged that Fiorentina is a strong team with skilled players. He praised his team for playing a great game, despite struggling to press high up the pitch due to Fiorentina's effective ball movement.
"That's what makes me proud - when I ask for a performance, Roma always delivers," Ranieri said.