diff --git a/Gemfile.lock b/Gemfile.lock
index 40e1078..0ce3fbc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -225,10 +225,10 @@ GEM
       jekyll-seo-tag (~> 2.1)
     minitest (5.11.3)
     multipart-post (2.1.1)
-    nokogiri (1.13.6)
+    nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.13.6-x64-mingw32)
+    nokogiri (1.13.9-x64-mingw32)
       racc (~> 1.4)
     octokit (4.21.0)
       faraday (>= 0.9)