Baby's name?

I've been talking to my husband lately and we both agreed we REALLY love a middle name for our daughter. However, it's my sister's name. My sister would be honored and flattered beyond belief that we chose to use her name in our daughters name, but I'm worried my other two sisters would be jealous or angry that I didn't choose to use their names. I'm not changing my mind on the name so I don't need advice on that, what I'd like is advice on how to go about announcing it and making my sisters feel included without them being jealous.