diff --git a/data/Dockerfiles/netfilter/Dockerfile b/data/Dockerfiles/netfilter/Dockerfile
index 0b6b6b6e..ce8fddbc 100644
--- a/data/Dockerfiles/netfilter/Dockerfile
+++ b/data/Dockerfiles/netfilter/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.14
+FROM alpine:3.15
 LABEL maintainer "Andre Peters <andre.peters@servercow.de>"
 
 ENV XTABLES_LIBDIR /usr/lib/xtables
@@ -13,6 +13,7 @@ RUN apk add --virtual .build-deps \
 && apk add -U python3 \
   iptables \
   ip6tables \
+  xtables-addons \
   tzdata \
   py3-pip \
   musl-dev \
diff --git a/docker-compose.yml b/docker-compose.yml
index fbc43359..5b1ad3f4 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -420,7 +420,7 @@ services:
             - acme
 
     netfilter-mailcow:
-      image: mailcow/netfilter:1.45
+      image: mailcow/netfilter:1.46
       stop_grace_period: 30s
       depends_on:
         - dovecot-mailcow