diff --git a/Gemfile b/Gemfile
index 2e5a35f..6e922c8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,7 @@ group :jekyll_plugins do
   # gem "jekyll-paginate", '~> 1.1.0'
 end
 
-gem "nokogiri"
+gem "nokogiri", ">= 1.13.2"
 gem "uglifier"
 gem "autoprefixer-rails"
 gem "kramdown-parser-gfm"
diff --git a/Gemfile.lock b/Gemfile.lock
index 48d502a..371ad98 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,16 +65,18 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     multipart-post (2.1.1)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.3)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     octokit (4.19.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (3.1.1)
+    racc (1.6.0)
     rack (1.6.13)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
@@ -109,8 +111,8 @@ DEPENDENCIES
   jekyll-seo-tag (~> 2.6.1)
   jekyll-sitemap (~> 1.4.0)
   kramdown-parser-gfm
-  nokogiri
+  nokogiri (>= 1.13.2)
   uglifier
 
 BUNDLED WITH
-   2.1.2
+   2.1.4