percona-server-server try to downgrade from 5.6 to 5.5

Hi Folks,

I have a strange behaviour, when trying a dist-upgrade. Seems that percona-server-server want to go from 5.6 to 5.5

# apt-get dist-upgrade -uV
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following NEW packages will be installed:
libperconaserverclient18 (5.5.41-rel37.0-727.precise)
percona-server-common-5.5 (5.5.41-rel37.0-727.precise)
The following packages have been kept back:
percona-server-server (5.6.21-70.1-698.precise => 5.5.41-rel37.0-727.precise)
0 upgraded, 2 newly installed, 0 to remove and 1 not upgraded.
Need to get 0 B/795 kB of archives.
After this operation, 3,152 kB of additional disk space will be used.
# dpkg -l |grep perco
ii libperconaserverclient18.1 5.6.21-70.1-698.precise Percona Server database client library
ii percona-server-client-5.6 5.6.21-70.1-698.precise Percona Server database client binaries
ii percona-server-common-5.6 5.6.21-70.1-698.precise Percona Server database common files (e.g. /etc/mysql/my.cnf)
ii percona-server-server 5.6.21-70.1-698.precise Percona Server database server
ii percona-server-server-5.6 5.6.21-70.1-698.precise Percona Server database server binaries
ii percona-xtrabackup 2.2.7-5050-1.precise Open source backup tool for InnoDB and XtraDB
ii xtrabackup 2.2.7-5050-1.precise Transitional package for percona-xtrabackup

# apt-cache show percona-server-server
Package: percona-server-server
Source: percona-server-5.5
Version: 1:5.5.41-rel37.0-727.precise
Architecture: amd64
Maintainer: Percona Server Development Team <mysql-dev&#64;percona.com>
Installed-Size: 56
Depends: percona-server-server-5.5
Homepage: http://www.percona.com/software/percona-server/
Priority: extra
Section: database
Filename: pool/main/p/percona-server-5.5/percona-server-server_5.5.41-rel37.0-727.precise_amd64.deb
Size: 11898
SHA256: f9dd741ee0fa5e2692acad665292f71dbcf4d37a19a172c67a7e654365528b07
SHA1: bd6fa791bb34190d7e8b7678657abc012289cb14
MD5sum: 54af128d137d306d9c3a50692758147b
Description: Percona Server database server
(metapackage depending on the latest version)
This is an empty package that depends on the current "best" version of
percona-server-server (currently percona-server-server-5.5), as determined
by the Percona Server maintainers. Install this package if in doubt
about which Percona Server version you need. That will install the version
recommended by the package maintainers.
.
Percona Server is a fast, stable and true multi-user, multi-threaded SQL
database server. SQL (Structured Query Language) is the most popular database
query language in the world. The main goals of Percona Server are speed,
robustness and ease of use.

Package: percona-server-server
Status: install ok installed
Priority: extra
Section: database
Installed-Size: 56
Maintainer: Percona Server Development Team <mysql-dev&#64;percona.com>
Architecture: amd64
Source: percona-server-5.6
Version: 5.6.21-70.1-698.precise
Depends: percona-server-server-5.6
Description: Percona Server database server
(metapackage depending on the latest version)
This is an empty package that depends on the current "best" version of
percona-server-server (currently percona-server-server-5.6), as determined
by the Percona Server maintainers. Install this package if in doubt
about which Percona Server version you need. That will install the version
recommended by the package maintainers.
.
Percona Server is a fast, stable and true multi-user, multi-threaded SQL
database server. SQL (Structured Query Language) is the most popular database
query language in the world. The main goals of Percona Server are speed,
robustness and ease of use.
Homepage: http://www.percona.com/software/percona-server/

Any idea about this issue?

Thanks in advance.

Issue fixed after this update:

http://www.percona.com/blog/2015/01/12/percona-server-5-6-22-71-0-now-available/