diff --git a/Gemfile b/Gemfile
index 3d76b568..f12826cc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -87,8 +87,6 @@ gem 'jquery-ui-rails', '~> 4.2.1'
 # for languages validation
 gem 'iso-639'
 
-gem 'thor', '~> 0.19'
-
 # frontend javascripts
 source 'https://rails-assets.org' do
   # for placeholder images
diff --git a/Gemfile.lock b/Gemfile.lock
index bce300a9..fe913a87 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -707,7 +707,6 @@ DEPENDENCIES
   sqlite3
   stripe
   stripe-ruby-mock
-  thor (~> 0.19)
   timecop
   transactional_capybara
   transitions