diff --git a/mailcow/default.nix b/mailcow/default.nix
index 05a0b1d..0408755 100644
--- a/mailcow/default.nix
+++ b/mailcow/default.nix
@@ -1,6 +1,15 @@
 { system ? builtins.currentSystem }:
 let
-  pkgs = import <nixpkgs> { inherit system; };
+  pkgs = import <nixpkgs> {
+    inherit system;
+    overlays = [
+      (self: super: {
+        docker = super.docker.override {
+          iptables = self.iptables-legacy;
+        };
+      })
+    ];
+  };
 
 in
 let
@@ -67,6 +76,7 @@
       ${pkgs.docker-compose}/bin/docker-compose -f /mailcow-dockerized/docker-compose.yml -f ${dockerComposeOverrideYaml}/docker-compose.override.yml build
 
       ${pkgs.busybox}/bin/mkdir -p /tmp /run/{mysql,mysql-socket}
+      ${pkgs.busybox}/bin/chmod u+w /mailcow-dockerized/data/web/templates/cache
       exec ${pkgs.docker-compose}/bin/docker-compose --env-file /mailcow-dockerized/mailcow.conf -f /mailcow-dockerized/docker-compose.yml -f ${dockerComposeOverrideYaml}/docker-compose.override.yml up --remove-orphans
     '';
 
diff --git a/mailcow/src/mailcow-dockerized/data/Dockerfiles/dockerapi/dockerapi.py b/mailcow/src/mailcow-dockerized/data/Dockerfiles/dockerapi/dockerapi.py
index 34f9b06..4a17e0c 100644
--- a/mailcow/src/mailcow-dockerized/data/Dockerfiles/dockerapi/dockerapi.py
+++ b/mailcow/src/mailcow-dockerized/data/Dockerfiles/dockerapi/dockerapi.py
@@ -375,12 +375,14 @@
 
 
   # api call: container_post - post_action: exec - cmd: system - task: mysql_upgrade
-  def container_post__exec__system__mysql_upgrade(self, container_id):
-    return jsonify(type='success', msg='mysql_upgrade: not touching fake MySQL', text='')
+  async def container_post__exec__system__mysql_upgrade(self, container_id, request_json):
+    return Response(content=json.dumps(dict(type='success', msg='mysql_upgrade: not touching fake MySQL', text=''), indent=4), media_type="application/json")
+
 
   # api call: container_post - post_action: exec - cmd: system - task: mysql_tzinfo_to_sql
-  def container_post__exec__system__mysql_tzinfo_to_sql(self, container_id):
-    return jsonify(type='success', msg='mysql_tzinfo_to_sql: not touching fake MySQL', text='')
+  async def container_post__exec__system__mysql_tzinfo_to_sql(self, container_id, request_json):
+    return Response(content=json.dumps(dict(type='success', msg='mysql_tzinfo_to_sql: not touching fake MySQL', text=''), indent=4), media_type="application/json")
+
 
   # api call: container_post - post_action: exec - cmd: reload - task: dovecot
   async def container_post__exec__reload__dovecot(self, container_id, request_json):
diff --git a/mailcow/src/mailcow-dockerized/docker-compose.yml b/mailcow/src/mailcow-dockerized/docker-compose.yml
index 0361b85..beaac7a 100644
--- a/mailcow/src/mailcow-dockerized/docker-compose.yml
+++ b/mailcow/src/mailcow-dockerized/docker-compose.yml
@@ -378,8 +378,8 @@
         - ./data/conf/rspamd/meta_exporter:/meta_exporter:ro,z
         - sogo-web-vol-1:/usr/lib/GNUstep/SOGo/
       ports:
-        - "${HTTPS_BIND:-}:${HTTPS_PORT:-443}:${HTTPS_PORT:-443}"
-        - "${HTTP_BIND:-}:${HTTP_PORT:-80}:${HTTP_PORT:-80}"
+        - 80:80
+        - 443:443
       restart: always
       networks:
         mailcow-network: