diff --git a/Gemfile.lock b/Gemfile.lock
index 8f6ecff..1d9cd6d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -149,7 +149,7 @@ GEM
     minitest (5.14.1)
     multi_json (1.13.1)
     nio4r (2.5.8)
-    nokogiri (1.13.6)
+    nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     oj (2.18.5)