diff --git a/Gemfile.lock b/Gemfile.lock
index 1e77717..617a749 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -226,7 +226,7 @@ GEM
       jekyll-sitemap (~> 1.3)
     minitest (5.14.2)
     multipart-post (2.1.1)
-    nokogiri (1.13.3-x86_64-linux)
+    nokogiri (1.13.4-x86_64-linux)
       racc (~> 1.4)
     nokogumbo (2.0.4)
       nokogiri (~> 1.8, >= 1.8.4)