Could not HEAD Received status code 504 from server: Gateway Time-out

I am getting the error as the below 


`Could not HEAD 'https://oss.sonatype.org:443/content/repositories/snapshots/com/github/bumptech/glide/recyclerview-integration Received status code 504 from server: Gateway Time-out`


https://github.com/bumptech/glide/blob/master/build.gradle#L69-L71