diff --git a/Gemfile b/Gemfile
index ac6bb42..33e8cd8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -62,3 +62,4 @@ group :development do
   # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
   gem 'spring'
 end
+gem 'nokogiri', '>= 1.7.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index a9888f8..e7794be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,7 +48,7 @@ GEM
       tzinfo (~> 1.1)
     addressable (2.5.0)
       public_suffix (~> 2.0, >= 2.0.2)
-    arel (6.0.3)
+    arel (6.0.4)
     autoprefixer-rails (6.5.3.1)
       execjs
     bcrypt (3.1.11)
@@ -57,7 +57,7 @@ GEM
     bootstrap (4.0.0.alpha5)
       autoprefixer-rails (>= 6.0.3)
       sass (>= 3.4.19)
-    builder (3.2.2)
+    builder (3.2.3)
     byebug (9.0.6)
     coffee-rails (4.1.1)
       coffee-script (>= 2.2.0)
@@ -66,7 +66,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.11.1)
-    concurrent-ruby (1.0.2)
+    concurrent-ruby (1.0.5)
     connection_pool (2.2.1)
     debug_inspector (0.0.2)
     devise (4.2.0)
@@ -93,7 +93,7 @@ GEM
       domain_name (~> 0.5)
     http-form_data (1.0.1)
     http_parser.rb (0.6.0)
-    i18n (0.7.0)
+    i18n (0.8.1)
     jbuilder (2.6.1)
       activesupport (>= 3.0.0, < 5.1)
       multi_json (~> 1.2)
@@ -101,7 +101,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (1.8.3)
+    json (1.8.6)
     loofah (2.0.3)
       nokogiri (>= 1.5.9)
     mail (2.6.4)
@@ -113,7 +113,7 @@ GEM
     minitest (5.10.1)
     multi_json (1.12.1)
     newrelic_rpm (3.17.1.326)
-    nokogiri (1.6.8.1)
+    nokogiri (1.7.1)
       mini_portile2 (~> 2.1.0)
     orm_adapter (0.5.0)
     pg (0.19.0)
@@ -138,9 +138,9 @@ GEM
     rails-assets-tether (1.4.0)
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.7)
+    rails-dom-testing (1.0.8)
       activesupport (>= 4.2.0.beta, < 5.0)
-      nokogiri (~> 1.6.0)
+      nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
@@ -177,7 +177,7 @@ GEM
       tilt (>= 1.3, < 3)
     spring (2.0.0)
       activesupport (>= 4.2)
-    sprockets (3.7.0)
+    sprockets (3.7.1)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.0)
@@ -186,12 +186,12 @@ GEM
       sprockets (>= 3.0.0)
     sqlite3 (1.3.12)
     thor (0.19.4)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     tilt (2.0.5)
     turbolinks (5.0.1)
       turbolinks-source (~> 5)
     turbolinks-source (5.0.0)
-    tzinfo (1.2.2)
+    tzinfo (1.2.3)
       thread_safe (~> 0.1)
     uglifier (3.0.4)
       execjs (>= 0.3.0, < 3)
@@ -220,6 +220,7 @@ DEPENDENCIES
   jbuilder (~> 2.0)
   jquery-rails
   newrelic_rpm
+  nokogiri (>= 1.7.1)
   pg
   puma
   rails (~> 4.2.7.1)
@@ -235,6 +236,5 @@ DEPENDENCIES
   turbolinks
   uglifier (>= 1.3.0)
   web-console (~> 2.0)
-
 BUNDLED WITH
    1.13.2