diff --git a/00base/07env-install-centos.sh b/00base/07env-install-centos.sh
index cd79f67..f63ce17 100644
--- a/00base/07env-install-centos.sh
+++ b/00base/07env-install-centos.sh
@@ -236,7 +236,9 @@ function init:update_yum_repos() {
     if [ ! -f "$repo_bak" ]; then
       mv $repo $repo_bak
       wget --timeout=10 --waitretry=3 --tries=5 --retry-connrefused --no-check-certificate ${YUM_REPOS} -O $repo
+      yum clean all
       yum makecache
+      yum -y install epel-release
     fi
   "
   check::exit_code "$?" "update-yum-repos" "$host 更新yum源" "exit"