kolab and owncloud

[Lars With]

Hi,

I cannot install owncloud because owncloud needs

php-composer(sabre/dav) >= 3.0.8

and Kolab repo
(http://obs.kolabsys.com/repositories/Kolab:/16/CentOS_7/Kolab:16.repo)
only contains

Name        : php-sabre-dav
Version     : 2.1.11
Release     : 3.3.el7.kolab_16

How can I solve this?

BTW, I think php-sabre-dav is really outdated.

Thanks in advance
Lars