# Upgrade server configuration
Upgrade server configuration to get security updates, performance improvements, and updates for Keitaro.
# How to upgrade
- The upgrade process overrides all the configuration. If you make any changes manually, the upgrade would revert them.
- The upgrade process shutdowns Keitaro for 1 to 60 seconds. In that period, the system log might show some strange errors.
- Open the Terminal.
- Run the following command:
curl keitaro.io/kctl.sh | bash -s -- upgrade
When the upgrade finishes, you must see message:
Keitaro is upgraded!