--- title: "Docker Version" description: "More information on why Docker version marks the installation as unsupported." --- ## The issue The version that is needed by the Supervisor depends on the features it needs to work properly. The current minimum supported version of Docker is: `20.10.17`. However, the feature set changes and improves over time. Therefore, the minimal required version may change. When that happens, it will be communicated before we publish a version that requires you to upgrade Docker. ## The solution If you are running an older version of Home Assistant OS, {% my updates title="update" %} it. If this is not Home Assistant OS, you need to manually update Docker on your host. For instructions on how to do that, check the official [Docker documentation](https://docs.docker.com/engine/install/debian/).