diff --git a/strsync/strlocale.py b/strsync/strlocale.py
index aa8101b..01166ec 100644
--- a/strsync/strlocale.py
+++ b/strsync/strlocale.py
@@ -121,22 +121,19 @@ def default_supporting_xcode_lang_codes():
     return [
         'ko',
         'el',
-        'fr_CA',
         'vi',
         'ca',
         'it',
-        'zh_HK',
+        'zh-HK',
         'ar',
         'cs',
         'id',
         'es',
-        'en-GB',
         'ru',
         'nl',
         'pt',
         'no',
         'tr',
-        'en-AU',
         'th',
         'ro',
         'pl',
@@ -150,12 +147,11 @@ def default_supporting_xcode_lang_codes():
         'da',
         'ja',
         'he',
-        'pt_PT',
-        'zh_TW',
+        'zh-Hans',
+        'zh-Hant',
         'sv',
-        'es_MX',
         'sk',
-        'zh_CN',
+        'nb',
         'ms'
     ]