AITA for not allowing my sister to bring her dogs to my wedding?

I'm getting married in a few months. It's going to be a traditional wedding with a reception and everything. My sister, who's going to be my maid of honor, recently asked if she could bring her two dogs to the wedding. I said no, dogs are not allowed in the venue and I don't want them ruining my wedding dress or wedding. My sister got very upset and said I'm being selfish and that these dogs are like her children. She said she will bring them no matter what and if I don't allow her to bring them she won't attend the wedding. I told her if she brings them I will ask her to leave. She called me an asshole for not allowing her to bring her dogs.<br><br><br><br>EDIT: I just want to say thank you to the people who have supported me and encouraged me to follow through with my decision. I just got off the phone with my sister and she said she will bring her boyfriend instead of the dogs. I'm so happy that everything worked out and I won't have any problems on my wedding day. I appreciate all the comments and the support.