diff --git a/Gemfile b/Gemfile
index 6ec82d9..df49694 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,7 +22,7 @@ gem 'redis', '~> 4.0'
 # Use Capistrano for deployment
 # gem 'capistrano-rails', group: :development
 
-gem 'nokogiri', '~> 1.6', '>= 1.6.8.1'
+gem 'nokogiri', '~> 1.13'
 
 # Use Rack CORS for handling Cross-Origin Resource Sharing (CORS), making cross-origin AJAX possible
 gem 'rack-cors'
diff --git a/Gemfile.lock b/Gemfile.lock
index 38fea09..4136c4f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -68,13 +68,15 @@ GEM
       mini_mime (>= 0.1.1)
     method_source (0.9.2)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.13.0)
     nio4r (2.5.2)
-    nokogiri (1.10.5)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pg (1.1.4)
     puma (3.12.1)
+    racc (1.6.0)
     rack (2.0.7)
     rack-cors (1.0.5)
       rack (>= 1.6.0)
@@ -135,7 +137,7 @@ DEPENDENCIES
   active_model_serializers
   byebug
   listen (>= 3.0.5, < 3.2)
-  nokogiri (~> 1.6, >= 1.6.8.1)
+  nokogiri (~> 1.13)
   pg (>= 0.18, < 2.0)
   puma (~> 3.7)
   rack-cors