diff --git a/Gemfile b/Gemfile
index 549ea26..458681f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ gem 'mysql2'
 gem 'httparty'
 gem 'redis'
 gem 'i18n', '0.7.0'
-gem 'nokogiri', '~> 1.13.4'
+gem 'nokogiri', '~> 1.13.9'
 gem 'countries', '2.1.4'
 gem 'cinch', '2.3.4'
 gem 'em-eventsource', '0.3.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index 7f3e188..5cbf1f4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,7 +52,7 @@ GEM
     multi_xml (0.6.0)
     mysql2 (0.5.4)
     netrc (0.11.0)
-    nokogiri (1.13.4)
+    nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     pry (0.14.1)
@@ -84,7 +84,7 @@ DEPENDENCIES
   i18n (= 0.7.0)
   mediawiki-gateway!
   mysql2
-  nokogiri (~> 1.13.4)
+  nokogiri (~> 1.13.9)
   pry
   redis
   unicode