diff --git a/roles/rocketchat/defaults/main.yml b/roles/rocketchat/defaults/main.yml
index 3afce72..c72e6b4 100644
--- a/roles/rocketchat/defaults/main.yml
+++ b/roles/rocketchat/defaults/main.yml
@@ -9,7 +9,7 @@ rocketchat_packages:
 rocketchat_dir: /srv/rocketchat
 rocketchat_application_path: '{{ rocketchat_dir }}/bundle'
 # "latest" implies latest stable here, can be "3.3.0", for example
-rocketchat_version: 6.4.9
+rocketchat_version: 6.6.1
 # rocketchat_tarball_remote: https://releases.rocket.chat/{{ rocketchat_version }}/download
 rocketchat_tarball_remote: https://cdn-download.rocket.chat/build/rocket.chat-{{ rocketchat_version }}.tgz
 rocketchat_tarball_fetch_timeout: 100
diff --git a/roles/rocketchat/templates/rocketchat.service.j2 b/roles/rocketchat/templates/rocketchat.service.j2
index bd674af..f6325fd 100644
--- a/roles/rocketchat/templates/rocketchat.service.j2
+++ b/roles/rocketchat/templates/rocketchat.service.j2
@@ -12,6 +12,7 @@ Group={{ rocketchat_service_group }}
 Environment=MONGO_URL=mongodb://{{ rocketchat_mongodb_uri }}
 Environment=MONGO_OPLOG_URL=mongodb://{{ rocketchat_mongodb_server }}:{{ rocketchat_mongodb_port }}/local
 Environment=ROOT_URL=https://{{ rocketchat_vhost_server }}
+Environment=BIND_IP={{rocketchat_internal_host }}
 Environment=PORT={{ rocketchat_internal_port }}
 {% for item in rocketchat_service_environment %}
 Environment={{ item.name }}={{ item.value }}
diff --git a/roles/rocketchat/templates/vhost.j2 b/roles/rocketchat/templates/vhost.j2
index 876c5e2..61bed9d 100644
--- a/roles/rocketchat/templates/vhost.j2
+++ b/roles/rocketchat/templates/vhost.j2
@@ -15,13 +15,11 @@ server {
 
   {% include 'templates/nginx_ssl.inc.j2' with context %}
 
-  # Referrer Policy
+  #  # Referrer Policy
   add_header Referrer-Policy 'no-referrer';
 
-
-  add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
-  add_header X-Frame-Options DENY;
-  add_header X-Content-Type-Options nosniff;
+  #  add_header X-Frame-Options DENY;
+  #  add_header X-Content-Type-Options nosniff;
 
   error_page 497  https://$host:$server_port$request_uri;
   location / {