diff --git a/Gemfile b/Gemfile
index 69b9cd0..3cfbf57 100644
--- a/Gemfile
+++ b/Gemfile
@@ -75,7 +75,7 @@ gem 'carrierwave-mongoid', '1.1.0', :require => 'carrierwave/mongoid'
 # The Spreadsheet Library is designed to read and write Spreadsheet Documents. Spreadsheet can read, write and modify Spreadsheet Documents.
 gem 'spreadsheet', '1.2.2'
 
-gem 'nokogiri', '~>1.10.8'
+gem 'nokogiri', '~>1.13.9'
 
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
diff --git a/Gemfile.lock b/Gemfile.lock
index f6f9538..2e04fa3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -134,7 +134,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0331)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.13.0)
     mongo (2.8.0)
       bson (>= 4.4.2, < 5.0.0)
@@ -159,13 +159,15 @@ GEM
       rspec (~> 3.3)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     popper_js (1.14.5)
     puma (3.12.2)
     pundit (1.1.0)
       activesupport (>= 3.0.0)
+    racc (1.6.0)
     rack (2.0.8)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -303,7 +305,7 @@ DEPENDENCIES
   mongoid (= 6.2.1)
   mongoid-history (= 0.8.1)
   mongoid-rspec (= 4.0.1)
-  nokogiri (~> 1.10.8)
+  nokogiri (~> 1.13.9)
   puma (~> 3.12)
   pundit (= 1.1.0)
   rails (~> 5.1.6)