diff --git a/.env b/.env
index 3182c16226..5cdc06d8bd 100644
--- a/.env
+++ b/.env
@@ -10,10 +10,10 @@ TIMEZONE="Melbourne"
 DEFAULT_COUNTRY_CODE="AU"
 
 # Locale for translation.
-LOCALE="en"
+LOCALE="en_AU"
 
 # For multilingual - ENV doesn't have array so pass it as string with commas
-AVAILABLE_LOCALES="en,es"
+AVAILABLE_LOCALES="en_AU,es"
 
 # Spree zone.
 CHECKOUT_ZONE="Australia"
diff --git a/spec/base_spec_helper.rb b/spec/base_spec_helper.rb
index 6a307e9c3c..fcb68b76d6 100644
--- a/spec/base_spec_helper.rb
+++ b/spec/base_spec_helper.rb
@@ -141,7 +141,7 @@ RSpec.configure do |config|
 
   # Reset locale for all specs.
   config.around(:each) do |example|
-    I18n.with_locale(:en) { example.run }
+    I18n.with_locale(:en_AU) { example.run }
   end
 
   # Reset all feature toggles to prevent leaking.