diff --git a/simpleimage/make_rootfs.sh b/simpleimage/make_rootfs.sh
index 870790b6..654e4d25 100755
--- a/simpleimage/make_rootfs.sh
+++ b/simpleimage/make_rootfs.sh
@@ -160,6 +160,7 @@ apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys BF428671
 apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 56A3D45E
 add-apt-repository "deb http://ppa.launchpad.net/longsleep/ubuntu-pine64-flavour-makers/ubuntu xenial main"
 add-apt-repository "deb http://ppa.launchpad.net/ayufan/pine64-ppa/ubuntu xenial main"
+add-apt-repository -y ppa:ubuntu-mozilla-security/ppa
 curl -fsSL http://deb.ayufan.eu/orgs/ayufan-pine64/archive.key | apt-key add -
 apt-get -y update
 apt-get -y install sudo sunxi-disp-tool \