EOS v 2.2.1.9.0.13

I need EOS v 2.2.1.9.0.13. Can someone direct me to a download? I am networking an Ion v2.3.3.9.0.10 as client to an EOS running 2.2.1.9.0.13. I need to rol back the Ion. Updating the EOS is not an otion.