diff --git a/Gemfile b/Gemfile
index 92b404c..fa824e6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,6 +8,6 @@ gem 'middleman-autoprefixer', '~> 3.0'
 gem 'middleman-sprockets', '~> 4.1'
 gem 'rouge', '~> 3.21'
 gem 'redcarpet', '~> 3.5.0'
-gem 'nokogiri', '~> 1.12.1'
+gem 'nokogiri', '~> 1.18.9'
 gem 'sass'
 gem 'webrick'
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