diff --git a/Gemfile b/Gemfile
index 3d9cd514720..b3e58c654fb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -51,7 +51,6 @@ gem 'message_bus'
 gem 'rails_multisite', path: 'vendor/gems/rails_multisite'
 
 gem 'redcarpet', require: false
-gem 'eventmachine'
 gem 'fast_xs'
 
 gem 'fast_xor'
@@ -96,7 +95,7 @@ gem 'sass'
 gem 'sidekiq'
 
 # for sidekiq web
-gem 'sinatra', require: nil
+gem 'sinatra', require: false
 
 gem 'therubyracer'
 gem 'thin', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 7cf52c720e3..2b207db1d01 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -468,7 +468,6 @@ DEPENDENCIES
   email_reply_parser
   ember-rails
   ember-source (= 1.11.3.1)
-  eventmachine
   fabrication (= 2.9.8)
   fakeweb (~> 1.3.0)
   fast_blank