diff --git a/spec/dummy/config/environments/production.rb b/spec/dummy/config/environments/production.rb
index <HASH>..<HASH> 100644
--- a/spec/dummy/config/environments/production.rb
+++ b/spec/dummy/config/environments/production.rb
@@ -68,7 +68,7 @@ Rails.application.configure do
 
   # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
   # the I18n.default_locale when a translation cannot be found).
-  config.i18n.fallbacks = true
+  config.i18n.fallbacks = [I18n.default_locale]
 
   # Send deprecation notices to registered listeners.
   config.active_support.deprecation = :notify
Back required configurations in config/environments/production.rb.