Cluster-server unable to install due to xtra backup

I am trying to install PXC but getting dependency issue with xtrabackup which is already installed.

[root@dsdbvm2 software]# more /etc/redhat-release
CentOS release 6.6 (Final)
[root@dsdbvm2 software]# uname -a
Linux dsdbvm2.ds.cv.net 2.6.32-504.el6.x86_64 #1 SMP Wed Oct 15 04:27:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
[root@dsdbvm2 software]# rpm -qa | grep -i percona
percona-toolkit-2.2.16-1.noarch
Percona-XtraDB-Cluster-client-56-5.6.30-25.16.1.el6.x86_64
percona-xtrabackup-24-debuginfo-2.4.3-1.el6.x86_64
Percona-XtraDB-Cluster-shared-56-5.6.30-25.16.1.el6.x86_64
Percona-XtraDB-Cluster-galera-3-3.16-1.rhel6.x86_64
percona-xtrabackup-24-2.4.3-1.el6.x86_64
[root@dsdbvm2 software]#
[root@dsdbvm2 software]# rpm -ivh Percona-XtraDB-Cluster-server-56-5.6.30-25.16.1.el6.x86_64.rpm
warning: Percona-XtraDB-Cluster-server-56-5.6.30-25.16.1.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID cd2efd2a: NOKEY
error: Failed dependencies:
percona-xtrabackup >= 2.2.5 is needed by Percona-XtraDB-Cluster-server-56-1:5.6.30-25.16.1.el6.x86_64
[root@dsdbvm2 software]#