Invalid signature for Releases packages

[Gaëtan Duchaussois <duchaussois@arise.iiens.net>]

Hi,
I use apt-check-sigs to check the signature of Release packages before
making an apt-get install/upgrade.
Since January the 1st, apt-check-sigs complains about bad sigs for
Source: deb-src ftp://ftp.fr.debian.org/debian/ sarge main contrib
non-free on all mirrors.
Release packages are signed with the 2005 key, which has expired,
whereas the Security releases are signed with 2006 key. Could you sign
all releases packages with the 2006 key?

Thanks In advance,

Gaëtan Duchaussois