diff --git a/Gemfile b/Gemfile
index 0ce571a..0400404 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ gem 'i18n-js'
 gem 'exceptional', '~> 2.0.33'
 gem 'oj', '~> 2.5.5'
 gem 'faraday', '~> 0.9.0'
-gem 'nokogiri', '~> 1.6.1'
+gem 'nokogiri', '~> 1.9.0'
 gem 'bbcoder', '~> 1.0.1'
 gem 'sanitize', '~> 2.1.0'
 gem 'carrierwave', '~> 0.10.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index a9743e7..10835d7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -174,7 +174,7 @@ GEM
     memoist (0.16.0)
     method_source (0.9.0)
     mime-types (1.25.1)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.4.0)
     money (6.10.0)
       i18n (>= 0.6.4, < 1.0)
     multi_json (1.12.2)
@@ -188,8 +188,8 @@ GEM
       net-ssh (>= 2.6.5)
     net-ssh (4.2.0)
     newrelic_rpm (3.13.0.299)
-    nokogiri (1.6.8.1)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.9.1)
+      mini_portile2 (~> 2.4.0)
     oj (2.5.5)
     os (0.9.6)
     poltergeist (1.6.0)
@@ -352,7 +352,7 @@ DEPENDENCIES
   mysql2 (~> 0.3.17)
   neat (~> 1.6.0)
   newrelic_rpm (~> 3.13.0.299)
-  nokogiri (~> 1.6.1)
+  nokogiri (~> 1.9.0)
   oj (~> 2.5.5)
   poltergeist (~> 1.6.0)
   pry-byebug (~> 1.3.2)
@@ -379,4 +379,4 @@ RUBY VERSION
    ruby 2.2.10p489
 
 BUNDLED WITH
-   1.16.5
+   1.17.3