diff --git a/roles/postgresql_server/files/backup-database b/roles/postgresql_server/files/backup-database
index 586bdca9a8..60dc1fd32e 100644
--- a/roles/postgresql_server/files/backup-database
+++ b/roles/postgresql_server/files/backup-database
@@ -4,7 +4,7 @@
 DB=$1
 
 # Make our latest backup
-/usr/bin/pg_dump --exclude-table-data=sessions -C $DB | /usr/bin/xz > /backups/$DB-$(date +%F).dump.xz
+/usr/bin/pg_dump --exclude-table-data=sessions -C $DB | /usr/bin/pxz > /backups/$DB-$(date +%F).dump.xz
 
 # Also, delete the backup from a few days ago.
 rm -f /backups/$DB-$(date --date="2 days ago" +%F).dump.xz
diff --git a/roles/postgresql_server/tasks/main.yml b/roles/postgresql_server/tasks/main.yml
index c24b18aacc..32b2c135db 100644
--- a/roles/postgresql_server/tasks/main.yml
+++ b/roles/postgresql_server/tasks/main.yml
@@ -9,6 +9,7 @@
   - postgresql-contrib
   - postgresql-plpython
   - python-psycopg2
+  - pxz
   when: ansible_distribution_major_version|int < 22
   tags:
   - packages