[Comm] проблема с обновлением apache

[Sergey]

Выдает следующую картину:
# apt-get dist-upgrade
Reading Package Lists... Done
Collecting File Provides... Done
Building Dependency Tree... Done
Calculating Upgrade... Done
The following packages have been kept back
  apache apache-common apache-suexec mod_ssl
0 packages upgraded, 0 newly installed, 0 removed and 4 not upgraded.

Что могло случиться?