diff --git a/Gemfile b/Gemfile
index 8726215..cf57313 100644
--- a/Gemfile
+++ b/Gemfile
@@ -44,5 +44,5 @@ gem 'github-pages', '227'
 gem 'html-pipeline', '2.14.2'
 gem 'sass', '3.7.4'
 gem 'safe_yaml', '1.0.5'
-gem 'nokogiri', '1.13.7'
+gem 'nokogiri', '1.13.9'
 gem 'webrick', '~> 1.7'
diff --git a/Gemfile.lock b/Gemfile.lock
index 9e06b4d..ef4e67b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -211,7 +211,7 @@ GEM
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     minitest (5.16.3)
-    nokogiri (1.13.7-x86_64-linux)
+    nokogiri (1.13.9-x86_64-linux)
       racc (~> 1.4)
     octokit (4.25.1)
       faraday (>= 1, < 3)
@@ -253,7 +253,7 @@ GEM
     zeitwerk (2.6.1)
 
 PLATFORMS
-  ruby
+  x86_64-linux
 
 DEPENDENCIES
   github-pages (= 227)
@@ -298,7 +298,7 @@ DEPENDENCIES
   kramdown-parser-gfm (= 1.1.0)
   liquid (= 4.0.3)
   minima (= 2.5.1)
-  nokogiri (= 1.13.7)
+  nokogiri (= 1.13.9)
   rouge (= 3.26.0)
   safe_yaml (= 1.0.5)
   sass (= 3.7.4)