diff --git a/sources.list b/sources.list
index 401c725..d59bd55 100644
--- a/sources.list
+++ b/sources.list
@@ -1,7 +1,4 @@
-# this can't be {us.,}archive.ubuntu.org because on the box
-# with dnsmasq changing that host to itself, rebuilding this fails
-# unless the container is running already
-deb http://mirrors.sonic.net/ubuntu bionic main universe
-deb http://mirrors.sonic.net/ubuntu bionic-updates main universe
-deb http://mirrors.sonic.net/ubuntu bionic-backports main universe
-deb http://mirrors.sonic.net/ubuntu bionic-security main universe
+deb mirror://mirrors.ubuntu.com/mirrors.txt bionic main universe restricted multiverse
+deb mirror://mirrors.ubuntu.com/mirrors.txt bionic-updates main universe restricted multiverse
+deb mirror://mirrors.ubuntu.com/mirrors.txt bionic-security main universe restricted multiverse
+deb mirror://mirrors.ubuntu.com/mirrors.txt bionic-backports main universe restricted multiverse