oracle linux 7 replace node 6 with node 8 or node 10

oracle linux 7 replace node 6 with node 8 or node 10

# yum uninstall node
# yum install oraclelinux-release-el7

edit and disable and enable node8 and node10 repos

# vi /etc/yum.repos.d/oracle-nodejs-ol7.repo
[ol7_developer_nodejs8]
enabled=0
[ol7_developer_nodejs10]
enabled=1

then

# yum install --disablerepo=ol7_developer_EPEL nodejs