diff --git a/lib/ingreedy/continuous_language_locale.rb b/lib/ingreedy/continuous_language_locale.rb
index 1773f2b..9143114 100644
--- a/lib/ingreedy/continuous_language_locale.rb
+++ b/lib/ingreedy/continuous_language_locale.rb
@@ -1,6 +1,6 @@
 module Ingreedy
   module ContinuousLanguageLocale
-    CONTINUOUS_LANGUAGES_LOCALES = %i(ja th zh-TW)
+    CONTINUOUS_LANGUAGES_LOCALES = %i(ja zh-TW)
 
     def use_whitespace?(locale)
       !CONTINUOUS_LANGUAGES_LOCALES.include?(locale)
diff --git a/spec/ingreedy/continuouse_language_locale_spec.rb b/spec/ingreedy/continuouse_language_locale_spec.rb
index 3b62b92..d306f8f 100644
--- a/spec/ingreedy/continuouse_language_locale_spec.rb
+++ b/spec/ingreedy/continuouse_language_locale_spec.rb
@@ -7,7 +7,6 @@
     context 'when the locale is a continuous language' do
       it 'returns false' do
         expect(use_whitespace?(:ja)).to be_falsey
-        expect(use_whitespace?(:th)).to be_falsey
         expect(use_whitespace?(:'zh-TW')).to be_falsey
       end
     end