diff --git a/Gemfile b/Gemfile
index d2a0065..f2f6845 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,8 +13,6 @@ gem 'puma', '~> 3.11'
 gem 'sass-rails', '~> 5.0'
 # Use Uglifier as compressor for JavaScript assets
 gem 'uglifier', '>= 1.3.0'
-# See https://github.com/rails/execjs#readme for more supported runtimes
-# gem 'mini_racer', platforms: :ruby
 
 # Use CoffeeScript for .coffee assets and views
 gem 'coffee-rails', '~> 4.2'
@@ -22,16 +20,6 @@ gem 'coffee-rails', '~> 4.2'
 gem 'turbolinks', '~> 5'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 gem 'jbuilder', '~> 2.5'
-# Use Redis adapter to run Action Cable in production
-# gem 'redis', '~> 4.0'
-# Use ActiveModel has_secure_password
-# gem 'bcrypt', '~> 3.1.7'
-
-# Use ActiveStorage variant
-# gem 'mini_magick', '~> 4.8'
-
-# Use Capistrano for deployment
-# gem 'capistrano-rails', group: :development
 
 # Reduces boot times through caching; required in config/boot.rb
 gem 'bootsnap', '>= 1.1.0', require: false
@@ -59,7 +47,6 @@ gem 'daemons', '~> 1.2', '>= 1.2.6'
 gem 'rack-cors', require: 'rack/cors'
 
 # ransack for SQL search
-# gem 'ransack', '~> 1.8', '>= 1.8.8'
 gem 'ransack', '~> 2.0', '>= 2.0.1'
 
 # paginate
diff --git a/Gemfile.lock b/Gemfile.lock
index a6111a8..c2ec11a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -128,7 +128,6 @@ GEM
       concurrent-ruby (~> 1.0)
     io-like (0.3.0)
     jaro_winkler (1.5.1)
-    jaro_winkler (1.5.1-x86_64-darwin-17)
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)