diff --git a/Gemfile b/Gemfile
index 0581c09..f95627f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ git_source(:github) do |repo_name|
   "https://github.com/#{repo_name}.git"
 end
 
-gem 'bootstrap-sass', '~> 3.3.6'
+gem 'bootstrap', '~> 4.0.0.alpha6'
 gem 'coffee-rails', '~> 4.2'
 gem 'devise'
 gem 'jbuilder', '~> 2.5'
diff --git a/Gemfile.lock b/Gemfile.lock
index 45aeb54..b45abdb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -42,16 +42,16 @@ GEM
       public_suffix (~> 2.0, >= 2.0.2)
     arel (7.1.4)
     ast (2.3.0)
-    autoprefixer-rails (6.7.0)
+    autoprefixer-rails (6.6.1)
       execjs
     axiom-types (0.1.1)
       descendants_tracker (~> 0.0.4)
       ice_nine (~> 0.11.0)
       thread_safe (~> 0.3, >= 0.3.1)
     bcrypt (3.1.11)
-    bootstrap-sass (3.3.7)
-      autoprefixer-rails (>= 5.2.1)
-      sass (>= 3.3.4)
+    bootstrap (4.0.0.alpha6)
+      autoprefixer-rails (>= 6.0.3)
+      sass (>= 3.4.19)
     builder (3.2.3)
     byebug (9.0.6)
     capybara (2.11.0)
@@ -305,7 +305,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  bootstrap-sass (~> 3.3.6)
+  bootstrap (~> 4.0.0.alpha6)
   byebug
   capybara
   coffee-rails (~> 4.2)
diff --git a/app/assets/javascripts/application.js b/app/assets/javascripts/application.js
index b12018d..3009bd1 100644
--- a/app/assets/javascripts/application.js
+++ b/app/assets/javascripts/application.js
@@ -11,6 +11,7 @@
 // about supported directives.
 //
 //= require jquery
+//= require bootstrap
 //= require jquery_ujs
 //= require turbolinks
 //= require_tree .
diff --git a/app/assets/stylesheets/application.scss b/app/assets/stylesheets/application.scss
index 8c26f8c..cbd46a7 100644
--- a/app/assets/stylesheets/application.scss
+++ b/app/assets/stylesheets/application.scss
@@ -1,7 +1 @@
-/*
- *= require_tree .
- *= require_self
- */
-
-@import "bootstrap-sprockets";
 @import "bootstrap";