security update 9.1.9 RE: RPM

RE: security patch on CentOS6
 http://yum.postgresql.org/repopackages.php
 
Hi, I have upgraded to 9.1.9 for most of my systems (source code installs), but we have one system that was installed with postgresql 9.1 on centOS with the RPM.   However, it looks like pgdg-centos91-9.1-4.noarch.rpm.1 is still the latest RPM available.   Was there no new security release for the RPM's?  IOW, was the vulnerability only for installations installed from source code?   If so, I won't worry about the upgrade (nothing to upgrade).
 
~DjK