diff --git a/inventory/host_vars/yggdrasil/vars.yml b/inventory/host_vars/yggdrasil/vars.yml
index 412bc77..eb5c770 100644
--- a/inventory/host_vars/yggdrasil/vars.yml
+++ b/inventory/host_vars/yggdrasil/vars.yml
@@ -30,6 +30,9 @@ system_base_udp_ports:
 system_base_tcp_ports:
   - 139                         # samba
   - 445                         # samba
+system_base_unattended_upgrades_blacklist:
+  - "linux-"
+  - "zfs(utils)?-"
 
 # --------------------------------------------------------------------------------------------------
 # system:var
diff --git a/roles b/roles
index b22e1ba..483780a 160000
--- a/roles
+++ b/roles
@@ -1 +1 @@
-Subproject commit b22e1ba3d01252f487105de76a90eb6af402b809
+Subproject commit 483780a828ed5d2b8a197bbf1c8270a9c994f00d