diff --git a/Gemfile b/Gemfile
index 6604cd5..9414279 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ gem "jekyll", ">= 3.6.3"
 
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
 gem "minima", "~> 2.0"
-gem "nokogiri", "~> 1.12.5"
+gem "nokogiri", "~> 1.13.4"
 gem "rubyzip", ">= 1.3.0"
 gem "ffi", ">= 1.9.24"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 3a9fd1d..b3e5572 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -232,7 +232,7 @@ GEM
       jekyll-seo-tag (~> 2.1)
     minitest (5.15.0)
     multipart-post (2.1.1)
-    nokogiri (1.12.5-x86_64-linux)
+    nokogiri (1.13.4-x86_64-linux)
       racc (~> 1.4)
     octokit (4.22.0)
       faraday (>= 0.9)
@@ -284,7 +284,7 @@ DEPENDENCIES
   jekyll-feed (~> 0.6)
   jekyll-redirect-from (~> 0.12)
   minima (~> 2.0)
-  nokogiri (~> 1.12.5)
+  nokogiri (~> 1.13.4)
   rubyzip (>= 1.3.0)
   tzinfo-data