diff --git a/Gemfile b/Gemfile
index a8df420..ff207ce 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'middleman-autoprefixer', '~> 2.4.3'
 gem 'middleman-deploy', '~> 1.0.0'
 # gem 'middleman-imageoptim', '~> 0.2.0'
 
-gem 'nokogiri', '~> 1.10'
+gem 'nokogiri', '~> 1.13'
 gem 'redcarpet', '~> 3.2.2'
 
 gem 'guard-middleman', '~> 0.5.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 2c74845..ca1c037 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -121,15 +121,16 @@ GEM
     middleman-syntax (2.0.0)
       middleman-core (~> 3.2)
       rouge (~> 1.0)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.1)
     multi_json (1.14.1)
     nenv (0.3.0)
     net-sftp (3.0.0)
       net-ssh (>= 5.0.0, < 7.0.0)
     net-ssh (6.0.2)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     notiffany (0.1.3)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -143,6 +144,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     ptools (1.3.5)
+    racc (1.6.0)
     rack (1.6.13)
     rack-livereload (0.3.17)
       rack
@@ -191,7 +193,7 @@ DEPENDENCIES
   middleman-livereload (~> 3.4.2)
   middleman-minify-html (~> 3.4.0)
   middleman-syntax (~> 2.0.0)
-  nokogiri (~> 1.10)
+  nokogiri (~> 1.13)
   redcarpet (~> 3.2.2)
 
 BUNDLED WITH