unable to install mariadb-galera-server-5.5 due to dependencies not available.

apt-get install mariadb-galera-server-5.5
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:
mariadb-galera-server-5.5 : Depends: mariadb-client-5.5 (>= 5.5.32+maria-1~wheezy) but it is not going to be installed
Depends: libmariadbclient18 (>= 5.5.32+maria-1~wheezy) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

mariadb-galera-server-5.5 : Depends: mariadb-client-5.5 (>= 5.5.32+maria-1~wheezy) but it is not going to be installed
Depends: libmariadbclient18 (>= 5.5.32+maria-1~wheezy) but it is not going to be installed

And as seen the package in repo is:

dpkg -l |grep mariadb-client-5.5
ii mariadb-client-5.5 5.5.33a+maria-1~wheezy amd64 MariaDB database client binaries

We have to get a reliable repo, so we can trust in updating our system.