apt-get update W: Conflicting distribution

[Matthias Meyer <Matthias.Meyer@gmx.li>]

Hallo,

Ich bekomme bei apt-get update die Fehlermeldung:
W: Conflicting distribution: ftp://security.debian.org
woody-proposed-updates Release (expected woody-proposed-updates but got
proposed-updates)

In meiner sources.list steht:
deb ftp://security.debian.org/debian woody-proposed-updates main contrib
non-free

Bei
deb ftp://security.debian.org/debian stable-proposed-updates main contrib
non-free
bekomme ich denselben Fehler: (expected stable-proposed-updates but got
proposed-updates)

Was soll ich tun?
-- 
Don't panic