sudo curl https://repos.fedorapeople.org/repos/dchen/apache-maven/epel-apache-maven.repo \
-o /etc/yum.repos.d/epel-apache-maven.repo
sudo sed -i s/\$releasever/6/g /etc/yum.repos.d/epel-apache-maven.repo
As seen on https://docs.aws.amazon.com/neptune/latest/userguide/iam-auth-connect-prerq.html