Yum PG 8.1?

I did 'yum search postgres' on my system (FC4) and the
latest version that shows up is 8.0.7. How can I get
yum to install 8.1.x? Here are the sites in my
yum.conf:

http://mirrors.kernel.org/fedora/core/updates/$releasever/$basearch
http://mirror.linux.duke.edu/pub/fedora/linux/core/updates/$releasever/$basearch
http://distro.ibiblio.org/pub/linux/distributions/fedora/linux/core/updates/$releasever/$basearch
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/$releasever/$basearch


Thanks,
CSN

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