diff --git a/README.md b/README.md
index b8b13af..3a7208e 100644
--- a/README.md
+++ b/README.md
@@ -206,14 +206,12 @@ These variables are common to image variants and will set defaults based on the
 
 ### Nginx ENV Variables
 
-<!-- temporarily hidden -->
-<!-- | CORS_HEADER_403_ALLOW_ORIGIN | The value of the [Access-Control-Allow-Origin](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Allow-Origin) header for `403` responses. Determines which origins can access the response. (Default: `"*"`). |
-| CORS_HEADER_403_ALLOW_METHODS | The value of the [Access-Control-Request-Method](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Request-Method) header for `403` responses. Determines the allowed request methods for the resource. Default: `"GET, POST, PUT, DELETE, OPTIONS"` |
-| CORS_HEADER_403_CONTENT_TYPE | The value of the  `Content-Type` header for `403` responses. Default: (`"text/plain"`) |
-| CORS_HEADER_403_MAX_AGE | The value of the [Access-Control-Max-Age](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Max-Age) header for `403` responses. The number of seconds that preflight requests for this resource may be cached by the browser. (Default: `3600`) | -->
-
 | Name     | Description|
 | -------- | ------------------------------------------------------------------- |
+| CORS_HEADER_403_ALLOW_ORIGIN | The value of the [Access-Control-Allow-Origin](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Allow-Origin) header for `403` responses. Determines which origins can access the response. (Default: `"*"`). |
+| CORS_HEADER_403_ALLOW_METHODS | The value of the [Access-Control-Request-Method](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Request-Method) header for `403` responses. Determines the allowed request methods for the resource. Default: `"GET, POST, PUT, DELETE, OPTIONS"` |
+| CORS_HEADER_403_CONTENT_TYPE | The value of the  `Content-Type` header for `403` responses. Default: (`"text/plain"`) |
+| CORS_HEADER_403_MAX_AGE | The value of the [Access-Control-Max-Age](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Max-Age) header for `403` responses. The number of seconds that preflight requests for this resource may be cached by the browser. (Default: `3600`) |
 | DNS_SERVER  | A string indicating the name servers used to resolve names of upstream servers into addresses. For localhost backend this value should not be defined (Default: _not defined_) |
 | KEEPALIVE_TIMEOUT  | Number of seconds for a keep-alive client connection to stay open on the server side (Default: `60s`) |
 | NGINX_ALWAYS_TLS_REDIRECT | A string value indicating if http should redirect to https (Allowed values: `on`, `off`. Default: `off`) |
diff --git a/nginx/templates/conf.d/default.conf.template b/nginx/templates/conf.d/default.conf.template
index 0ca4d73..976f262 100644
--- a/nginx/templates/conf.d/default.conf.template
+++ b/nginx/templates/conf.d/default.conf.template
@@ -62,8 +62,7 @@ server {
     location / {
         client_max_body_size 0;
 
-        # temporarily disabled, since the upstream image doesn't include the required module
-        # include includes/cors.conf;
+        include includes/cors.conf;
         include includes/proxy_backend.conf;
 
         index index.html index.htm;
diff --git a/nginx/templates/nginx.conf.template b/nginx/templates/nginx.conf.template
index 6392a38..53f0c27 100644
--- a/nginx/templates/nginx.conf.template
+++ b/nginx/templates/nginx.conf.template
@@ -1,7 +1,6 @@
 load_module modules/ngx_http_modsecurity_module.so;
 # allows to add cors headers when replying with 403
-# temporarily disabled, since the upstream image doesn't include the module
-# load_module modules/ngx_http_headers_more_filter_module.so;
+load_module modules/ngx_http_headers_more_filter_module.so;
 
 worker_processes auto;
 pid /tmp/nginx.pid;