diff --git a/Gemfile b/Gemfile
index 3309df73..336835ed 100644
--- a/Gemfile
+++ b/Gemfile
@@ -27,7 +27,7 @@ gem 'state_machines-activerecord', '~> 0.5'
 gem 'wysiwyg-rails', '~> 2'
 # https://github.com/sferik/rails_admin/wiki/Froala-WYSIWYG-HTML-Editor
 gem 'bugsnag', '~> 6.6'
-gem 'nokogiri', '~> 1.10'
+gem 'nokogiri', '~> 1.11'
 
 group :development do
   gem 'annotate'
diff --git a/Gemfile.lock b/Gemfile.lock
index ec295b8c..db6c3fdd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -179,12 +179,13 @@ GEM
     mimemagic (0.3.5)
     mini_magick (4.10.1)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.0)
     minitest (5.14.1)
     nested_form (0.3.2)
     nio4r (2.5.2)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.0)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     parallel (1.19.2)
     parser (2.7.1.4)
@@ -209,6 +210,7 @@ GEM
       activesupport (>= 3.0.0)
     pundit-matchers (1.6.0)
       rspec-rails (>= 3.0.0)
+    racc (1.5.2)
     rack (2.2.3)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
@@ -397,7 +399,7 @@ DEPENDENCIES
   json-schema (~> 2.8)
   leaflet-rails (~> 1)
   listen
-  nokogiri (~> 1.10)
+  nokogiri (~> 1.11)
   pg (~> 1)
   postmark (~> 1)
   puma (~> 3)