diff --git a/files/apt/sources.list.amd64 b/files/apt/sources.list.amd64
index 4a94e3161ab1..45902be1078c 100644
--- a/files/apt/sources.list.amd64
+++ b/files/apt/sources.list.amd64
@@ -6,3 +6,8 @@ deb-src [arch=amd64] http://debian-archive.trafficmanager.net/debian/ buster mai
 deb [arch=amd64] http://debian-archive.trafficmanager.net/debian-security/ buster/updates main contrib non-free
 deb-src [arch=amd64] http://debian-archive.trafficmanager.net/debian-security/ buster/updates main contrib non-free
 deb [arch=amd64] http://debian-archive.trafficmanager.net/debian/ buster-backports main contrib non-free
+deb [arch=amd64] http://packages.trafficmanager.net/debian/debian buster main contrib non-free
+deb-src [arch=amd64] http://packages.trafficmanager.net/debian/debian buster main contrib non-free
+deb [arch=amd64] http://packages.trafficmanager.net/debian/debian-security/ buster_updates main contrib non-free
+deb-src [arch=amd64] http://packages.trafficmanager.net/debian/debian-security/ buster_updates main contrib non-free
+deb [arch=amd64] http://packages.trafficmanager.net/debian/debian buster-backports main contrib non-free
diff --git a/files/apt/sources.list.arm64 b/files/apt/sources.list.arm64
index dd82c744de1d..58b84978d023 100644
--- a/files/apt/sources.list.arm64
+++ b/files/apt/sources.list.arm64
@@ -6,3 +6,8 @@ deb-src [arch=arm64] http://deb.debian.org/debian buster main contrib non-free
 deb [arch=arm64] http://deb.debian.org/debian buster-updates main contrib non-free
 deb-src [arch=arm64] http://deb.debian.org/debian buster-updates main contrib non-free
 deb [arch=arm64] http://ftp.debian.org/debian buster-backports main
+deb [arch=arm64] http://packages.trafficmanager.net/debian/debian buster main contrib non-free
+deb-src [arch=arm64] http://packages.trafficmanager.net/debian/debian buster main contrib non-free
+deb [arch=arm64] http://packages.trafficmanager.net/debian/debian buster-updates main contrib non-free
+deb-src [arch=arm64] http://packages.trafficmanager.net/debian/debian buster-updates main contrib non-free
+deb [arch=arm64] http://packages.trafficmanager.net/debian/debian buster-backports main
diff --git a/files/apt/sources.list.armhf b/files/apt/sources.list.armhf
index 760906188a94..eb6fe3be6889 100644
--- a/files/apt/sources.list.armhf
+++ b/files/apt/sources.list.armhf
@@ -6,3 +6,8 @@ deb-src [arch=armhf] http://deb.debian.org/debian buster main contrib non-free
 deb [arch=armhf] http://deb.debian.org/debian buster-updates main contrib non-free
 deb-src [arch=armhf] http://deb.debian.org/debian buster-updates main contrib non-free
 deb [arch=armhf] http://ftp.debian.org/debian buster-backports main
+deb [arch=armhf] http://packages.trafficmanager.net/debian/debian buster main contrib non-free
+deb-src [arch=armhf] http://packages.trafficmanager.net/debian/debian buster main contrib non-free
+deb [arch=armhf] http://packages.trafficmanager.net/debian/debian buster-updates main contrib non-free
+deb-src [arch=armhf] http://packages.trafficmanager.net/debian/debian buster-updates main contrib non-free
+deb [arch=armhf] http://packages.trafficmanager.net/debian/debian buster-backports main