diff --git a/doc/install-guide/source/environment-sql-database-rdo.rst b/doc/install-guide/source/environment-sql-database-rdo.rst
index 3b80b9aa3d..85a9a21928 100644
--- a/doc/install-guide/source/environment-sql-database-rdo.rst
+++ b/doc/install-guide/source/environment-sql-database-rdo.rst
@@ -14,7 +14,7 @@ Install and configure components
 
    .. code-block:: console
 
-      # yum install mariadb mariadb-server python2-PyMySQL
+      # dnf install mariadb mariadb-server python3-PyMySQL
 
 2. Create and edit the ``/etc/my.cnf.d/openstack.cnf`` file
    (backup existing configuration files in ``/etc/my.cnf.d/`` if needed)