Glibc library updation failing

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Hello
Please help on this error.
RHSA-2015-0090 for this vulnerability issue need to upgrade glibc version from glibc-2.5-107.el5_9.5.x86_64 to glibc-2.5-123.el5_11.1.x86_64.
But while upgrade it throws dependency error.

error: Failed dependencies:
glibc-common = 2.5-123.el5_11.1 is needed by glibc-2.5-123.el5_11.1.x86_64.

i try to upgrade glibc-common-2.5-123.el5_11.1.x86_64.rpm but it is also throws same dependency error

error: Failed dependencies:
       glibc-common = 2.5-107.el5_9.5 is needed by (installed) glibc-2.5-107.el5_9.5.i686
       glibc-common = 2.5-107.el5_9.5 is needed by (installed) glibc-2.5-107.el5_9.5.x86_64

i try to install and upgrade for previous installed versions of glibc but same dependency error .

   rpm -Uvh  glibc-common-2.5-107.el5_9.5.x86_64.rpm

    Preparing...                ########################################### [100%]
    package glibc-common-2.5-107.el5_9.5.x86_64 is already installed.

    rpm -ev glibc-common-2.5-107.el5_9.5
   error: Failed dependencies:
    glibc-common = 2.5-107.el5_9.5 is needed by (installed) glibc-2.5-107.el5_9.5.i686
    glibc-common = 2.5-107.el5_9.5 is needed by (installed) glibc-2.5-107.el5_9.5.x86_64

Please help me how to upgrade glibc.

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