diff --git a/scripts/InstallScripts/InstallPackages.sh b/scripts/InstallScripts/InstallPackages.sh
index a8f50d0..06caba0 100755
--- a/scripts/InstallScripts/InstallPackages.sh
+++ b/scripts/InstallScripts/InstallPackages.sh
@@ -57,7 +57,7 @@ then
   # is told to sleep at lid close, and activate lock
   # gnome-screensaver shows the desktop for a fraction of a second at wakeup
   # xscreensaver works as well, if you prefer that but is less simple
-  apt install xsecurelock
+  apt install -y -t unstable xsecurelock
 
   #Install packages not in an apt repo
   dpkg -i $DIR/xfce-themes/*
diff --git a/scripts/buildFilesystem.sh b/scripts/buildFilesystem.sh
index fb5a40c..ef4baa2 100755
--- a/scripts/buildFilesystem.sh
+++ b/scripts/buildFilesystem.sh
@@ -166,8 +166,10 @@ chroot $outmnt apt-get clean
 chroot $outmnt apt install -y libinput-tools xdotool build-essential
 #Package is copied into /InstallResources/packages
 
+chroot $outmnt apt-get install -y -t unstable -d xsecurelock
+
 #Download the packages to be installed by Install.sh:
-chroot $outmnt apt-get install -y -d xorg acpi-support lightdm tasksel dpkg librsvg2-common xorg xserver-xorg-input-libinput alsa-utils anacron avahi-daemon eject iw libnss-mdns xdg-utils lxqt crda xfce4 dbus-user-session system-config-printer tango-icon-theme xfce4-power-manager xfce4-terminal xfce4-goodies mousepad vlc libutempter0 xterm numix-gtk-theme dconf-cli dconf-editor plank network-manager-gnome network-manager-openvpn network-manager-openvpn-gnome dtrx emacs25 accountsservice sudo pavucontrol-qt xsecurelock
+chroot $outmnt apt-get install -y -d xorg acpi-support lightdm tasksel dpkg librsvg2-common xorg xserver-xorg-input-libinput alsa-utils anacron avahi-daemon eject iw libnss-mdns xdg-utils lxqt crda xfce4 dbus-user-session system-config-printer tango-icon-theme xfce4-power-manager xfce4-terminal xfce4-goodies mousepad vlc libutempter0 xterm numix-gtk-theme dconf-cli dconf-editor plank network-manager-gnome network-manager-openvpn network-manager-openvpn-gnome dtrx emacs25 accountsservice sudo pavucontrol-qt
 
 
 if [ "$PRAWNOS_SUITE" = "stretch" ]