When i try ton install php5-mysql it gives this error

The following packages have unmet dependencies:
php5-mysql: Depends: php5-common (= 5.2.6.dfsg.1-3ubuntu4) but 5.2.6.dfsg.1-3ubuntu4.4 is to be installed
E: Broken packages

I tried installing php5-common but it says php5-common is new version

I think i have to install
Code:
5.2.6.dfsg.1-3ubuntu4.4
but i don't know what that is and how to upgrade it