diff --git a/make.iso.preseed.sh b/make.iso.preseed.sh
index 4b2be5d..5287503 100755
--- a/make.iso.preseed.sh
+++ b/make.iso.preseed.sh
@@ -63,11 +63,11 @@ DEBIAN_ISO_TYPE="firm"
 # Define URL according to specified release name {{{
 case "${DEBIAN_VERSION_NAME}" in
 	"oldstable" | "stretch" )
-		DEBIAN_VERSION_NB="9.6.0"
+		DEBIAN_VERSION_NB="9.11.0"
 
-		DEBIAN_ISO_DVD_URL="https://cdimage.debian.org/debian-cd/current/amd64/iso-dvd/debian-${DEBIAN_VERSION_NB}-amd64-DVD-1.iso"
-		DEBIAN_ISO_NETINST_URL="https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-${DEBIAN_VERSION_NB}-amd64-netinst.iso"
-		DEBIAN_ISO_NONFREE_URL="http://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/archive/9.7.0+nonfree/amd64/iso-cd/firmware-9.7.0-amd64-netinst.iso"
+		DEBIAN_ISO_DVD_URL="https://cdimage.debian.org/cdimage/archive/${DEBIAN_VERSION_NB}/amd64/iso-dvd/debian-${DEBIAN_VERSION_NB}-amd64-DVD-1.iso"
+		DEBIAN_ISO_NETINST_URL="https://cdimage.debian.org/cdimage/archive/${DEBIAN_VERSION_NB}/amd64/iso-cd/debian-${DEBIAN_VERSION_NB}-amd64-netinst.iso"
+		DEBIAN_ISO_NONFREE_URL="http://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/archive/${DEBIAN_VERSION_NB}+nonfree/amd64/iso-cd/firmware-${DEBIAN_VERSION_NB}-amd64-netinst.iso"
 		DEBIAN_ISO_MINI_URL="http://ftp.fr.debian.org/debian/dists/${DEBIAN_VERSION_NAME}/main/installer-amd64/current/images/netboot/mini.iso"
 	;;
 	"stable" | "buster" )