diff --git a/setup/start/nginx/appconfig.ejs b/setup/start/nginx/appconfig.ejs
index d5d4ce6de..be0249d7d 100644
--- a/setup/start/nginx/appconfig.ejs
+++ b/setup/start/nginx/appconfig.ejs
@@ -7,10 +7,8 @@ map $http_upgrade $connection_upgrade {
 server {
 <% if (vhost) { %>
     listen       443;
-    listen       [::]:443;
     server_name  <%= vhost %>;
 <% } else { %>
-    listen       [::]:443 default_server;
     listen       443 default_server;
 <% } %>
 
diff --git a/setup/start/nginx/nginx.conf b/setup/start/nginx/nginx.conf
index 3a026627f..602069a08 100644
--- a/setup/start/nginx/nginx.conf
+++ b/setup/start/nginx/nginx.conf
@@ -36,7 +36,6 @@ http {
     # HTTP server
     server {
         listen      80;
-        listen      [::]:80;
 
         # collectd
         location /nginx_status {
diff --git a/src/infra_version.js b/src/infra_version.js
index 62b10c533..25ed67322 100644
--- a/src/infra_version.js
+++ b/src/infra_version.js
@@ -6,7 +6,7 @@
 
 exports = module.exports = {
     // a version bump means that all app containers are recreated
-    'version': 47,
+    'version': 46,
 
     'baseImages': [ 'cloudron/base:0.10.0' ],