diff --git a/Gemfile b/Gemfile
index 98278ec..cde5717 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,6 +2,6 @@ source "https://rubygems.org"
 ruby RUBY_VERSION
 
 gem 'github-pages', group: :jekyll_plugins
-gem 'nokogiri','~> 1.10.8'
+gem 'nokogiri','~> 1.13.5'
 
 gem 'wdm', '~> 0.1.0' if Gem.win_platform?
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index 6e8de11..a0af653 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -192,21 +192,23 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minima (2.1.1)
       jekyll (~> 3.3)
     minitest (5.11.3)
     multipart-post (2.0.0)
     net-dns (0.8.0)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.8-x64-mingw32)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.5)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    nokogiri (1.13.5-x64-mingw32)
+      racc (~> 1.4)
     octokit (4.8.0)
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
     public_suffix (2.0.5)
+    racc (1.6.0)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -238,7 +240,7 @@ PLATFORMS
 
 DEPENDENCIES
   github-pages
-  nokogiri (~> 1.10.8)
+  nokogiri (~> 1.13.5)
 
 RUBY VERSION
    ruby 2.4.3p205