diff --git a/Gemfile.lock b/Gemfile.lock
index 16043957..382a8caa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,7 +29,7 @@ GEM
     minitest (5.16.3)
     nanoc (3.8.0)
       cri (~> 2.3)
-    nokogiri (1.13.8)
+    nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     parallel (1.22.1)