diff --git a/Gemfile b/Gemfile
index 30b2ec7..fe80f3b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -30,7 +30,7 @@ gem 'bcrypt', '~> 3.1.7'
 
 gem 'puma'
 
-gem 'bootstrap-sass', '~> 3.3.6'
+gem 'bootstrap-sass', '~> 3.4.1'
 gem 'font-awesome-rails'
 gem 'money-rails'
 gem 'carrierwave'
diff --git a/Gemfile.lock b/Gemfile.lock
index 1c2a399..b8eda72 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -39,14 +39,14 @@ GEM
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     arel (6.0.3)
-    autoprefixer-rails (6.3.7)
+    autoprefixer-rails (9.7.2)
       execjs
     bcrypt (3.1.11)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
-    bootstrap-sass (3.3.6)
+    bootstrap-sass (3.4.1)
       autoprefixer-rails (>= 5.2.1)
-      sass (>= 3.3.4)
+      sassc (>= 2.0.0)
     builder (3.2.2)
     byebug (9.0.5)
     capybara (2.18.0)
@@ -75,6 +75,7 @@ GEM
     execjs (2.7.0)
     faker (1.6.1)
       i18n (~> 0.5)
+    ffi (1.11.2)
     font-awesome-rails (4.5.0.1)
       railties (>= 3.2, < 5.1)
     globalid (0.3.6)
@@ -158,6 +159,9 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (11.2.2)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
     rdoc (4.2.2)
       json (~> 1.4)
     rest-client (2.0.0)
@@ -182,13 +186,19 @@ GEM
       rspec-mocks (~> 3.9.0)
       rspec-support (~> 3.9.0)
     rspec-support (3.9.0)
-    sass (3.4.22)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
     sass-rails (5.0.6)
       railties (>= 4.0.0, < 6)
       sass (~> 3.1)
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
+    sassc (2.2.1)
+      ffi (~> 1.9)
     sdoc (0.4.1)
       json (~> 1.7, >= 1.7.7)
       rdoc (~> 4.0)
@@ -231,7 +241,7 @@ PLATFORMS
 
 DEPENDENCIES
   bcrypt (~> 3.1.7)
-  bootstrap-sass (~> 3.3.6)
+  bootstrap-sass (~> 3.4.1)
   byebug
   capybara
   carrierwave