diff --git a/helpers/make-brltty b/helpers/make-brltty
index 463f568..6535996 100644
--- a/helpers/make-brltty
+++ b/helpers/make-brltty
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-#    Copyright (C) 2022  Luis Guzmán <ark@switnet.org>
+#    Copyright (C) 2024  Luis Guzmán <ark@switnet.org>
 #
 #    This program is free software; you can redistribute it and/or modify
 #    it under the terms of the GNU General Public License as published by
@@ -23,8 +23,8 @@
 # such packages from Debian in order to build the required udeb packages.
 ##
 
-VERSION=0
-EXTERNAL='deb-src http://ftp.debian.org/debian bullseye-backports main'
+VERSION=1
+EXTERNAL='deb-src http://ftp.debian.org/debian bookworm-backports main'
 REPOKEY=0E98404D386FA1D9
 NETINST=true
 . ./config