Shut down the Timeline Service, switch to the newer version, and start the Timeline Service:

su - yarn -c "/usr/hdp/current/hadoop-yarn-timelineserver/sbin/yarn-daemon.sh stop timelineserver"

hdp-select set hadoop-yarn-timelineserver 2.2.9.0-$BUILD

su - yarn -c "/usr/hdp/current/hadoop-yarn-timelineserver/sbin/yarn-daemon.sh start timelineserver"