невозможно обновить systemd с 232-25 + deb9u2 до 232-25 + deb9u4 на устройстве raspbian

Моя настоящая цель - запустить systemd-journal-remote, чтобы я мог отправлять журналы с этого устройства в удаленный приемник журнала. apt-get update / upgrade не показывает пакетов, требующих обновления

$ sudo apt-get install systemd-journal-remote
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 systemd-journal-remote : Depends: systemd (= 232-25+deb9u4) but 232-25+deb9u2 is to be installed
E: Unable to correct problems, you have held broken packages.

$ sudo apt-get install systemd
Reading package lists... Done
Building dependency tree
Reading state information... Done
systemd is already the newest version (232-25+deb9u2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

$ cat /etc/issue
Raspbian GNU/Linux 9 \n \l

$ cat /etc/debian_version
9.4