diff --git a/debian/chroot.install b/debian/chroot.install
index d4e0781..d3da9a5 100755
--- a/debian/chroot.install
+++ b/debian/chroot.install
@@ -51,7 +51,15 @@ dbs_pkg_include="aptitude,btrfs-progs,bzip2,cryptsetup,debconf-i18n,dialog,dmset
 
 # Prepare host system {{{
 apt update
-apt install -y btrfs-progs coreutils debootstrap e2fsprogs gawk ipcalc lvm2 thin-provisioning-tools parted util-linux wget || exit 1
+apt install -y coreutils e2fsprogs gawk ipcalc lvm2 thin-provisioning-tools parted util-linux wget || exit 1
+
+## Install a recent version of debootstrap
+wget http://ftp.de.debian.org/debian/pool/main/d/debootstrap/debootstrap_1.0.114_all.deb -O /tmp/debootstrap.deb
+dpkg -i /tmp/debootstrap.deb || exit 2
+
+## Install a recent version of debian-archive-keyring
+wget http://ftp.de.debian.org/debian/pool/main/d/debian-archive-keyring/debian-archive-keyring_2019.1+deb10u1_all.deb -O /tmp/debian-archive-keyring.deb
+dpkg -i /tmp/debian-archive-keyring.deb || exit 3
 # }}}
 # Partitionning {{{
 if [ "${manage_part}" -eq 0 ]; then