Could not resolve dependencies for project com.github.kayak:branding:nbm:1.0-SNAPSHOT

Hi,
I'm having an issue while trying to compile Kayak on a Debian GNU/Linux (sid):

Failed to transfer file: http://bits.netbeans.org/maven2/org/netbeans/api/org-openide-util/RELEASE80/org-openide-util-RELEASE80.pom. Return code is: 502 , ReasonPhrase:Bad Gateway.

If I actually point the browser on the URL (or try to download it via wget or curl) it fails, seems like there's no resource behind the HTTP server.
Thanks in advance,
m