diff --git a/inventories/z9/hosts.yaml b/inventories/z9/hosts.yaml
index 332520b..46ddc36 100644
--- a/inventories/z9/hosts.yaml
+++ b/inventories/z9/hosts.yaml
@@ -16,6 +16,7 @@ all:
           ansible_user: chaos
         audio:
           ansible_host: audio.z9.ccchh.net
+          ansible_user: chaos
         public-reverse-proxy:
           ansible_host: public-reverse-proxy.z9.ccchh.net
           ansible_user: chaos
diff --git a/playbooks/roles/bluetooth_audio_sink/tasks/main.yaml b/playbooks/roles/bluetooth_audio_sink/tasks/main.yaml
index 8696a0c..76d6355 100644
--- a/playbooks/roles/bluetooth_audio_sink/tasks/main.yaml
+++ b/playbooks/roles/bluetooth_audio_sink/tasks/main.yaml
@@ -53,7 +53,7 @@
   become: true
   when: raspberry_pi_check__cpuinfo.found
   ansible.builtin.apt:
-    deb: https://ftp.debian.org/debian/pool/main/d/debian-archive-keyring/debian-archive-keyring_2021.1.1_all.deb
+    deb: https://ftp.debian.org/debian/pool/main/d/debian-archive-keyring/debian-archive-keyring_2021.1.1+deb11u1_all.deb
 
 - name: Ensure debian backports repository is enabled
   ansible.builtin.include_role: