diff --git a/app/models/elastic_search.rb b/app/models/elastic_search.rb
index 970cbe4a..9e18a8e9 100644
--- a/app/models/elastic_search.rb
+++ b/app/models/elastic_search.rb
@@ -17,6 +17,7 @@ def initialize(_index = nil)
 
     arguments = {
       host: es_host(@es_config),
+      port: 443,
       transport_options: {
         request: { open_timeout: @es_config['connect_timeout'] },
         headers: { content_type: 'application/json' }