diff --git a/Gemfile b/Gemfile
index e2e56845a..f48284828 100644
--- a/Gemfile
+++ b/Gemfile
@@ -16,7 +16,7 @@ gem 'rails', '~> 6.1.5'
 gem 'psych', '< 4.0'
 gem 'view_component', require: 'view_component/engine'
 gem 'recaptcha', require: 'recaptcha/rails'
-gem 'sanitize', '~> 5.2'
+gem 'sanitize', '~> 6.0'
 gem 'sassc-rails'
 gem 'webpacker', '~> 4.0.0'
 gem 'yomu', git: 'https://github.com/biosistemika/yomu', branch: 'master'
diff --git a/Gemfile.lock b/Gemfile.lock
index 0c3770ad2..fd29d714a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -384,8 +384,6 @@ GEM
     nokogiri (1.13.7)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogumbo (2.0.4)
-      nokogiri (~> 1.8, >= 1.8.4)
     oauth2 (1.4.4)
       faraday (>= 0.8, < 2.0)
       jwt (>= 1.0, < 3.0)
@@ -548,10 +546,9 @@ GEM
     rubyzip (1.3.0)
     rufus-scheduler (3.7.0)
       fugit (~> 1.1, >= 1.1.6)
-    sanitize (5.2.3)
+    sanitize (6.0.0)
       crass (~> 1.0.2)
-      nokogiri (>= 1.8.0)
-      nokogumbo (~> 2.0)
+      nokogiri (>= 1.12.0)
     sassc (2.4.0)
       ffi (~> 1.9)
     sassc-rails (2.1.2)
@@ -719,7 +716,7 @@ DEPENDENCIES
   rubocop-rails
   rubyzip
   rufus-scheduler (~> 3.5)
-  sanitize (~> 5.2)
+  sanitize (~> 6.0)
   sassc-rails
   scenic (~> 1.4)
   sdoc (~> 1.0)