diff --git a/roles/kde-backup/templates/backup-postbox.sh b/roles/kde-backup/templates/backup-postbox.sh
index 9e27a82..d2bdc65 100755
--- a/roles/kde-backup/templates/backup-postbox.sh
+++ b/roles/kde-backup/templates/backup-postbox.sh
@@ -1,31 +1,31 @@
 LOCATION=/root/{{backup_directory}}
-find $LOCATION -name '*gz' -mtime +6 | xargs rm -f
+find $LOCATION -name '*xz' -mtime +6 | xargs rm -f
 
 # Grab our databases
 for DATABASE in `mysqlshow | grep -v "information_schema" | grep -v "performance_schema" | grep -v "mysql" | tail -n+4 | awk '{print $2}'`; do
-  mysqldump --skip-extended-insert $DATABASE | gzip -9 - > $LOCATION/db.$DATABASE.`date +%w`.sql.gz
+  mysqldump --skip-extended-insert $DATABASE | xz - > $LOCATION/db.$DATABASE.`date +%w`.sql.xz
 done
 
 # Get a listing of all mailman archives we want to backup
 cd /
 ls -d1 var/lib/mailman/archives/private/* | grep -v mbox > ~/backup-excludes
 cd ~/
 
 # Backup mailman archives
-tar -czf $LOCATION/mailman.`date +%w`.tar.gz  -C / --exclude-from=/root/backup-excludes var/lib/mailman
+tar -cJf $LOCATION/mailman.`date +%w`.tar.xz  -C / --exclude-from=/root/backup-excludes var/lib/mailman
 
 # Backup the mailman install and some other tools
-tar -czf $LOCATION/mailman-install.`date +%w`.tar -C / usr/lib/mailman
-tar -czf $LOCATION/root-scripts.`date +%w`.tgz -C / root/bin
-tar -czf $LOCATION/commitfilter.`date +%w`.tgz -C / --exclude=home/commitfilter/procmail.log home/commitfilter
+tar -cJf $LOCATION/mailman-install.`date +%w`.tar.xz -C / usr/lib/mailman
+tar -cJf $LOCATION/root-scripts.`date +%w`.tar.xz -C / root/bin
+tar -cJf $LOCATION/commitfilter.`date +%w`.tar.xz -C / --exclude=home/commitfilter/procmail.log home/commitfilter
 
 # Cleanup following the Mailman backup
 rm /root/backup-excludes
 
 # Backup the system configuration, crontabs and package listing
 tar -czf $LOCATION/etc.`date +%w`.tgz -C / etc/
 tar -czf $LOCATION/crontabs.`date +%w`.tgz -C / var/spool/cron/
 dpkg -l > $LOCATION/dpkg.`date +%w`
 
 # Transfer to the backup server
 lftp -q -f ~/bin/backup-options