# Upgrade Instruction for V1.6.x

If you have Otto Installed already please follow thse instructions to upgrade

1. Run the Uninstaller in the <OttoAppDirectory>
2. Manually Remove the <OttoAppDirectory>/logs and <OttoAppDirectory>/data folders.
3. Run the new Installer
4. If you need to install an SSL passphrase, follow the [instructions here](https://docs.ottofms.info/article/407-ssl-passphrase)