diff --git a/setup/so-functions b/setup/so-functions
index b7acf7cb1..ba815e57f 100755
--- a/setup/so-functions
+++ b/setup/so-functions
@@ -2718,7 +2718,7 @@ update_sudoers() {
 update_packages() {
 	if [ "$OS" = 'centos' ]; then
 	    yum repolist >> /dev/null
-        yum -y update >> "$setup_log"
+        yum -y update --exclude=salt* >> "$setup_log"
 	else
 		retry 50 10 "apt-get -y update" >> "$setup_log" 2>&1 || exit 1
 		retry 50 10 "apt-get -y upgrade" >> "$setup_log" 2>&1 || exit 1