--- a/debian/postinst	Tue Jan 13 12:17:55 2015 +0100
+++ b/debian/postinst	Tue Jan 13 15:05:19 2015 +0100
@@ -20,6 +20,9 @@
 
 case "$1" in
     configure)
+	for f in C8696E39D44352272562A23E88910CCEB9FB4706; do 
+	    apt-key adv -k $f >/dev/null 2>&1 && apt-key del $f
+	done
 	PUB=/usr/share/schlittermann-apt-keys/pubring.gpg
 	apt-key add $PUB
     ;;