diff --git a/conf/yum-CentOS-7.conf b/conf/yum-CentOS-7.conf
index 0c58bb94..1f79bb83 100644
--- a/conf/yum-CentOS-7.conf
+++ b/conf/yum-CentOS-7.conf
@@ -57,8 +57,10 @@ gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
 name=home:opcm (CentOS_7)
 type=rpm-md
 baseurl=https://download.opensuse.org/repositories/home:/opcm/CentOS_7/
+        https://ftp.gwdg.de/pub/opensuse/repositories/home:/opcm/CentOS_7/
 gpgcheck=1
 gpgkey=https://download.opensuse.org/repositories/home:/opcm/CentOS_7/repodata/repomd.xml.key
+       https://ftp.gwdg.de/pub/opensuse/repositories/home:/opcm/CentOS_7/repodata/repomd.xml.key
 enabled=1
 
 [shells_fish_release_3]