diff --git a/data/Dockerfiles/unbound/Dockerfile b/data/Dockerfiles/unbound/Dockerfile
index 7658a8f8..35c6fc0d 100644
--- a/data/Dockerfiles/unbound/Dockerfile
+++ b/data/Dockerfiles/unbound/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.9
+FROM alpine:3.10
 
 LABEL maintainer "Andre Peters <andre.peters@servercow.de>"
 
diff --git a/data/conf/unbound/unbound.conf b/data/conf/unbound/unbound.conf
index e2e3e9eb..f67729b3 100644
--- a/data/conf/unbound/unbound.conf
+++ b/data/conf/unbound/unbound.conf
@@ -32,6 +32,7 @@ server:
   hide-version: yes
   max-udp-size: 4096
   msg-buffer-size: 65552
+  unwanted-reply-threshold: 10000
 
 remote-control:
     control-enable: yes
diff --git a/docker-compose.yml b/docker-compose.yml
index c402011c..1e10b69f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,7 +2,7 @@ version: '2.1'
 services:
 
     unbound-mailcow:
-      image: mailcow/unbound:1.7
+      image: mailcow/unbound:1.8
       build: ./data/Dockerfiles/unbound
       command: /usr/sbin/unbound
       environment: