Changes in repositories?

Dear all, I’m running GitLab CE 8.12.7 and we wanted to update to 8.12.8 on a RH 7 machine. But executing the command

yum update

doesn’t shows the new version. Taking a look at the configured yum repository shows me the following URL:

https://packages.gitlab.com/gitlab/gitlab-ce/el/7/

But there seems to be nothing available at this position anymore?

Thanks for any help!