diff --git a/Gemfile b/Gemfile
index 6f8ee2760bf..1d84cc34d5c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,4 +10,4 @@ gem 'middleman-s3_sync', '~> 4.0.3'
 gem 'mime-types', '~> 3.1.0'
 gem 'rouge', '~> 2.0.5'
 gem 'redcarpet', '~> 3.4.0'
-gem 'nokogiri', '~> 1.6.8'
+gem 'nokogiri', '~> 1.13.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index 3251d6baf7c..ae407b5e237 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -112,11 +112,12 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.8.0)
     minitest (5.10.3)
     multi_json (1.12.1)
-    nokogiri (1.6.8.1)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.13.2)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     padrino-helpers (0.13.3.4)
       i18n (~> 0.6, >= 0.6.7)
       padrino-support (= 0.13.3.4)
@@ -125,6 +126,7 @@ GEM
       activesupport (>= 3.1)
     parallel (1.12.0)
     public_suffix (2.0.5)
+    racc (1.6.0)
     rack (2.0.3)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
@@ -159,7 +161,7 @@ DEPENDENCIES
   middleman-sprockets (~> 4.1.0)
   middleman-syntax (~> 3.0.0)
   mime-types (~> 3.1.0)
-  nokogiri (~> 1.6.8)
+  nokogiri (~> 1.13.2)
   redcarpet (~> 3.4.0)
   rouge (~> 2.0.5)