[Koha] zebra utility after koha upgrade

After successful upgrading koha from v3.22.21 to v19.05.17 zebra indexer doesn't work in the crontab. I have the following cronjobs: PERL5LIB=/usr/share/koha/lib */5 * * * * KOHA_CONF=/etc/koha/koha-conf.xml /usr/share/koha/bin/migration_tools/rebuild_zebra.pl -b -a -z >/dev but after 5 minutes od adding new biblioitems they are not searched. If I run the command in the shell: $ KOHA_CONF=/etc/koha/koha-conf.xml /usr/share/koha/bin/migration_tools/ rebuild_zebra.pl -b -a -z >/dev the new biblioitems are appearing in serch results. Can anybody help me to set up a crontab for the zebra rebuild utility?