diff --git a/Gemfile b/Gemfile
index 4e2c9ae..5e6f088 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 ruby RUBY_VERSION
 gem "jekyll", "~> 3.8"
 gem "sass", "3.4.23"
-gem "nokogiri", "~> 1.10.10"
+gem "nokogiri", "~> 1.11.0"
 gem "ffi", "~> 1.9.24"
 gem "kramdown", ">= 2.3.0"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 0e94b7d..8b6739b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,15 +64,19 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    mini_portile2 (2.4.0)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    mini_portile2 (2.5.0)
+    nokogiri (1.11.0)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
+    nokogiri (1.11.0-x86_64-linux)
+      racc (~> 1.4)
     pandoc-ruby (2.1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     posix-spawn (0.3.15)
     progressbar (1.11.0)
     public_suffix (4.0.6)
+    racc (1.5.2)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -94,7 +98,7 @@ DEPENDENCIES
   jekyll-pandoc
   jekyll-sitemap
   kramdown (>= 2.3.0)
-  nokogiri (~> 1.10.10)
+  nokogiri (~> 1.11.0)
   sass (= 3.4.23)
   tzinfo-data