MicroK8s on Mac: older versions of K8s do not work

I’m trying to install older channel of k8s using microk8s, but it doesn’t work:

microk8s install --channel 1.21

After start, it’s still 1.22:

microk8s kubectl version
rClient Version: version.Info{Major:“1”, Minor:“22”, GitVersion:“v1.22.1”, GitCommit:“632ed300f2c34f6d6d15ca4cef3d3c7073412212”, GitTreeState:“clean”, BuildDate:“2021-08-19T15:45:37Z”, GoVersion:“go1.16.7”, Compiler:“gc”, Platform:“darwin/amd64”}

Any ideas?