diff --git a/Gemfile b/Gemfile
index 8773b76d58..9d1b67c480 100644
--- a/Gemfile
+++ b/Gemfile
@@ -115,9 +115,10 @@ end
 
 group :test do
   gem "capybara"
+  gem "chromedriver-helper"
   gem "database_rewinder"
   gem "factory_bot_rails"
-  gem "poltergeist"
+  gem "selenium-webdriver"
   gem "simplecov", require: false
   gem "timecop"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 2b708b202a..60b7840336 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -72,6 +72,8 @@ GEM
     annotate (2.7.4)
       activerecord (>= 3.2, < 6.0)
       rake (>= 10.4, < 13.0)
+    archive-zip (0.11.0)
+      io-like (~> 0.3.0)
     arel (9.0.0)
     ast (2.4.0)
     awesome_print (1.8.0)
@@ -121,11 +123,15 @@ GEM
       rack (>= 1.6.0)
       rack-test (>= 0.6.3)
       xpath (~> 3.1)
+    childprocess (0.9.0)
+      ffi (~> 1.0, >= 1.0.11)
+    chromedriver-helper (1.2.0)
+      archive-zip (~> 0.10)
+      nokogiri (~> 1.8)
     chunky_png (1.3.10)
     cld (0.7.0)
       ffi
     climate_control (0.2.0)
-    cliver (0.3.2)
     cocaine (0.6.0)
       terrapin (= 0.6.0)
     coderay (1.1.2)
@@ -264,6 +270,7 @@ GEM
       imgix (~> 1.1, >= 1.1.0)
     impressionist (1.6.1)
       nokogiri (~> 1)
+    io-like (0.3.0)
     jaro_winkler (1.5.1)
     jb (0.5.0)
       multi_json
@@ -380,10 +387,6 @@ GEM
     parser (2.5.1.2)
       ast (~> 2.4.0)
     pg (1.0.0)
-    poltergeist (1.18.1)
-      capybara (>= 2.1, < 4)
-      cliver (~> 0.3.1)
-      websocket-driver (>= 0.2.0)
     polyamorous (1.3.3)
       activerecord (>= 3.0)
     powerpack (0.1.2)
@@ -497,6 +500,7 @@ GEM
     ruby_dep (1.5.0)
     ruby_identicon (0.0.5)
       chunky_png (~> 1.3.5)
+    rubyzip (1.2.1)
     sass (3.5.6)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
@@ -505,6 +509,9 @@ GEM
     scss_lint (0.57.0)
       rake (>= 0.9, < 13)
       sass (~> 3.5.5)
+    selenium-webdriver (3.13.0)
+      childprocess (~> 0.5)
+      rubyzip (~> 1.2)
     sentry-raven (2.7.4)
       faraday (>= 0.7.6, < 1.0)
     simple_oauth (0.3.1)
@@ -612,6 +619,7 @@ DEPENDENCIES
   bullet
   by_star
   capybara
+  chromedriver-helper
   cld
   commonmarker
   counter_culture
@@ -663,7 +671,6 @@ DEPENDENCIES
   omniauth-twitter
   paperclip
   pg
-  poltergeist
   pry
   pry-alias
   pry-byebug
@@ -686,6 +693,7 @@ DEPENDENCIES
   rubocop
   ruby_identicon
   scss_lint
+  selenium-webdriver
   sentry-raven
   simplecov
   sitemap_generator
diff --git a/README.md b/README.md
index 2e005ae493..5d31ee35aa 100644
--- a/README.md
+++ b/README.md
@@ -16,8 +16,7 @@ To run Annict on a local machine, you need to have the following dependencies in
 * Ruby 2.5
 * PostgreSQL 10.4
 * ImageMagick
-* PhantomJS
-  * For tests
+* ChromeDriver
 
 #### Running the app
 
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index d236c2e3d4..faddc9078a 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -7,7 +7,6 @@
 
 require File.expand_path("../../config/environment", __FILE__)
 require "rspec/rails"
-require "capybara/poltergeist"
 require "capybara/rails"
 require "capybara/rspec"
 
@@ -48,4 +47,8 @@
   # the seed, which is printed after each run.
   #     --seed 1234
   config.order = "random"
+
+  config.before(:each, type: :system) do
+    driven_by :selenium_chrome_headless
+  end
 end
diff --git a/spec/support/capybara.rb b/spec/support/capybara.rb
deleted file mode 100644
index 29a97d8369..0000000000
--- a/spec/support/capybara.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-Capybara.default_max_wait_time = 8 # Seconds to wait before timeout error. Default is 2
-
-# Register slightly larger than default window size...
-Capybara.register_driver :poltergeist do |app|
-  Capybara::Poltergeist::Driver.new(app, {
-    debug: false,              # change this to true to troubleshoot
-    window_size: [1300, 1000], # this can affect dynamic layout
-    timeout: 60,
-    js_errors: false
-  })
-end
-
-Capybara.javascript_driver = :poltergeist
-
-##
-# スクショ画像を作成するためのメソッド。`tmp/render` 以下に画像が保存されます。
-# 注意: このメソッドを使用するときは、`js` オプションを `context` メソッドなどに指定してください。
-#
-# 例:
-# describe '#index' do
-#   context 'うまくいってるとき', js: true do
-#     render_page('すくしょ')
-#   end
-# end
-#
-def render_page(name)
-  png_name = name.strip.gsub(/\W+/, '-')
-  path = File.join('tmp/render', "#{png_name}.png")
-  save_screenshot(path)
-end
-
-# HTML形式でページを保存する `save_and_open_page` メソッドのショートカット
-def save!
-  save_and_open_page
-end
diff --git a/spec/features/comments_spec.rb b/spec/system/comments_spec.rb
similarity index 100%
rename from spec/features/comments_spec.rb
rename to spec/system/comments_spec.rb
diff --git a/spec/features/home_spec.rb b/spec/system/home_spec.rb
similarity index 100%
rename from spec/features/home_spec.rb
rename to spec/system/home_spec.rb