helm-diff: helm plugin update/install fails

~ > helm plugin list                                                                                                                                                                                                                                                                                   kube minikube 13:04:22
NAME      	VERSION   	DESCRIPTION
diff      	3.2.0     	Preview helm upgrade changes as a diff
fullstatus	0.2.0     	This plugin shows the status of the resources that have been deployed through the specified helm release
helm-git  	0.11.1    	Get non-packaged Charts directly from Git.
s3        	0.10.0    	The plugin allows to use s3 protocol to upload, fetch charts and to work with repositories.
          	          	https://gi...
secrets   	3.12.0-dev	This plugin provides secrets values encryption for Helm charts secure storing

~ > helm plugin update diff                                                                                                                                                                                                                                                                            kube minikube 13:04:11
Error: unknown command "home" for "helm"
Run 'helm --help' for usage.
Downloading https://github.com/databus23/helm-diff/releases/latest/download/helm-diff-macos-amd64.tgz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   155  100   155    0     0    265      0 --:--:-- --:--:-- --:--:--   269
100     9    0     9    0     0     11      0 --:--:-- --:--:-- --:--:--     0
tar: Error opening archive: Unrecognized archive format
Failed to install helm-diff
	For support, go to https://github.com/databus23/helm-diff.
Error: Failed to update plugin diff, got error (plugin update hook for "diff" exited with error)