diff --git a/Gemfile b/Gemfile
index 047d64b3b..e42fb4390 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,7 +14,7 @@ gem 'pg', '~> 1.1'
 gem 'pg_search' # PostgreSQL full text search
 gem 'rails', '~> 6.0.0'
 gem 'recaptcha', require: 'recaptcha/rails'
-gem 'sanitize', '~> 5.0'
+gem 'sanitize', '~> 5.2'
 gem 'sassc-rails'
 gem 'simple_token_authentication', '~> 1.16.0' # Token authentication for Devise
 gem 'webpacker', '~> 4.0.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 0de321232..5379122b7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -361,7 +361,7 @@ GEM
     nio4r (2.5.2)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
-    nokogumbo (2.0.1)
+    nokogumbo (2.0.2)
       nokogiri (~> 1.8, >= 1.8.4)
     oauth2 (1.4.1)
       faraday (>= 0.8, < 0.16.0)
@@ -507,7 +507,7 @@ GEM
     rufus-scheduler (3.6.0)
       fugit (~> 1.1, >= 1.1.6)
     safe_yaml (1.0.5)
-    sanitize (5.1.0)
+    sanitize (5.2.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.8.0)
       nokogumbo (~> 2.0)
@@ -675,7 +675,7 @@ DEPENDENCIES
   ruby-graphviz (~> 1.2)
   rubyzip
   rufus-scheduler (~> 3.5)
-  sanitize (~> 5.0)
+  sanitize (~> 5.2)
   sassc-rails
   scenic (~> 1.4)
   sdoc (~> 1.0)