diff --git a/group_vars/all.yaml b/group_vars/all.yaml
index b9fbc0b..516740a 100644
--- a/group_vars/all.yaml
+++ b/group_vars/all.yaml
@@ -11,7 +11,7 @@ trusted_ranges:
   - { v: ipv4, cidr: 185.205.52.194/32 }
   - { v: ipv6, cidr: "::1" }
   - { v: ipv6, cidr: "fe80::/10" }
-  - { v: ipv6, cidr: "2a02:166b:92::/64" }
+  - { v: ipv6, cidr: "2a02:166b:92::/48" }
 
 mqtt_internal_host: mqtt.bitlair.nl
 mqtt_public_host: bitlair.nl