diff --git a/Gemfile b/Gemfile
index 0d00ce6c..a294e65b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -45,7 +45,7 @@ gem 'bcrypt', '~> 3.1.7'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 # gem 'jbuilder', '~> 1.2'
 
-gem "bootstrap-sass", "3.3.7"
+gem "bootstrap-sass", "3.4.1"
 gem "font-awesome-sass", "~> 4.5.0"
 
 group :development do
diff --git a/Gemfile.lock b/Gemfile.lock
index f9c87ec8..d806261a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -55,12 +55,12 @@ GEM
       activerecord (>= 3.0)
     arel (9.0.0)
     ast (2.4.0)
-    autoprefixer-rails (9.3.1)
+    autoprefixer-rails (9.4.7)
       execjs
     bcrypt (3.1.12)
-    bootstrap-sass (3.3.7)
+    bootstrap-sass (3.4.1)
       autoprefixer-rails (>= 5.2.1)
-      sass (>= 3.3.4)
+      sassc (>= 2.0.0)
     builder (3.2.3)
     bullet (5.9.0)
       activesupport (>= 3.0.0)
@@ -185,8 +185,8 @@ GEM
     rainbow (3.0.0)
     rake (12.3.1)
     rb-fsevent (0.10.3)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
     ref (2.0.0)
     rspec-expectations (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
@@ -208,7 +208,7 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.4.4)
       nokogumbo (~> 1.4)
-    sass (3.6.0)
+    sass (3.7.3)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -219,6 +219,9 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
+    sassc (2.0.0)
+      ffi (~> 1.9.6)
+      rake
     selenium-webdriver (2.53.4)
       childprocess (~> 0.5)
       rubyzip (~> 1.0)
@@ -276,7 +279,7 @@ DEPENDENCIES
   activemodel-serializers-xml (~> 1.0.1)
   acts_as_list
   bcrypt (~> 3.1.7)
-  bootstrap-sass (= 3.3.7)
+  bootstrap-sass (= 3.4.1)
   bullet
   byebug
   codeclimate-test-reporter (= 1.0.7)