Installed 5.6 with AppArmor override. Now Ubuntu 13.10 trying to upgrade mysql 5.5

With Percona consultation, I installed Percona 5.6 server and client. In the course of the installation, I had to use

sudo apt-get install percona-server-server-5.6 percona-server-client-5.6

sudo apt-get -f install -o Dpkg::Options::="--force-overwrite"

to override Ubuntu’s AppArmor. Now Ubuntu 13.10 keeps trying and failing to upgrade mysql 5.5. How can I clue Ubuntu in to what is going on? Can I remove 5.5 from the upgrade list?