diff --git a/config/environments/production.rb b/config/environments/production.rb
index 232df2f8..98cf2785 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -64,7 +64,7 @@ Rails.application.configure do
   # Ignore bad email addresses and do not raise email delivery errors.
   # Set this to true and configure the email server for immediate delivery to raise delivery errors.
   # config.action_mailer.raise_delivery_errors = false
-  config.action_mailer.smtp_settings.openssl_verify_mode = 'none'
+  config.action_mailer.smtp_settings = { openssl_verify_mode: 'none' }
 
   # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
   # the I18n.default_locale when a translation cannot be found).