diff --git a/automation/build/centos/7.dockerfile b/automation/build/centos/7.dockerfile
index e688a4cece..f5264e02d9 100644
--- a/automation/build/centos/7.dockerfile
+++ b/automation/build/centos/7.dockerfile
@@ -15,7 +15,8 @@ RUN rpm --rebuilddb && \
     rm -rf /var/cache/yum
 
 # install Xen depends
-RUN yum -y install \
+RUN yum -y update \
+    && yum -y install \
         gcc \
         gcc-c++ \
         ncurses-devel \