diff --git a/Gemfile b/Gemfile
index 315a86d09..6aa435ade 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,5 +8,5 @@ gem 'middleman-autoprefixer', '~> 2.7'
 gem 'middleman-sprockets', '~> 4.1'
 gem 'rouge', '~> 3.20'
 gem 'redcarpet', '~> 3.5.0'
-gem 'nokogiri', '~> 1.10.8'
+gem 'nokogiri', '~> 1.11.4'
 gem 'sass'
diff --git a/Gemfile.lock b/Gemfile.lock
index b3db4b0e8..90a606f04 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,10 +76,11 @@ GEM
     middleman-syntax (3.2.0)
       middleman-core (>= 3.2)
       rouge (~> 3.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.1)
     minitest (5.14.1)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.4)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     padrino-helpers (0.13.3.4)
       i18n (~> 0.6, >= 0.6.7)
       padrino-support (= 0.13.3.4)
@@ -88,6 +89,7 @@ GEM
       activesupport (>= 3.1)
     parallel (1.19.1)
     public_suffix (4.0.5)
+    racc (1.5.2)
     rack (2.2.3)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
@@ -122,7 +124,7 @@ DEPENDENCIES
   middleman-autoprefixer (~> 2.7)
   middleman-sprockets (~> 4.1)
   middleman-syntax (~> 3.2)
-  nokogiri (~> 1.10.8)
+  nokogiri (~> 1.11.4)
   redcarpet (~> 3.5.0)
   rouge (~> 3.20)
   sass