diff --git a/Gemfile b/Gemfile
index d1b2125..15e5fe2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'jekyll-seo-tag'
 gem 'jekyll-sitemap'
 gem 'rouge'
 gem 'mini_magick'
-gem 'nokogiri', '~> 1.10.8'
+gem 'nokogiri', '~> 1.13.9'
 gem 'httparty'
 
 group :jekyll_plugins do
diff --git a/Gemfile.lock b/Gemfile.lock
index 97b0d9f..050404e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,9 +8,9 @@ GEM
       tzinfo (~> 1.1)
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
-    algolia_html_extractor (2.6.2)
+    algolia_html_extractor (2.6.4)
       json (~> 2.0)
-      nokogiri (~> 1.10.4)
+      nokogiri (~> 1.10)
     algoliasearch (1.27.1)
       httpclient (~> 2.8, >= 2.8.3)
       json (>= 1.5.1)
@@ -71,7 +71,7 @@ GEM
       jekyll (~> 3.3)
     jekyll-watch (1.5.1)
       listen (~> 3.0)
-    json (2.3.0)
+    json (2.6.2)
     kramdown (1.17.0)
     liquid (4.0.3)
     listen (3.2.0)
@@ -79,12 +79,13 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     mini_magick (4.9.4)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     octokit (4.7.0)
       sawyer (~> 0.8.0, >= 0.5.3)
     parallel (1.11.2)
@@ -92,6 +93,7 @@ GEM
       forwardable-extended (~> 2.6)
     progressbar (1.10.1)
     public_suffix (3.1.1)
+    racc (1.6.0)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -127,7 +129,7 @@ DEPENDENCIES
   jekyll-seo-tag
   jekyll-sitemap
   mini_magick
-  nokogiri (~> 1.10.8)
+  nokogiri (~> 1.13.9)
   rouge
 
 BUNDLED WITH