Problem with update pear

I am trying update Pear and I type in console:

pear upgrade pear开发者_高级运维

then I got error:

Error getting channel info from pear.php.net: Channel pear.php.net does not support xml-rpc method package.listLatestReleases

What should I do to upgrade PEAR?

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You have a very very very old PEAR version that still uses the XML-RPC protocol. This is not supported anymore since a very long time.

Re-installing PEAR is the only option here.