diff --git a/backend/Gemfile b/backend/Gemfile
index 8506fea..6acb969 100644
--- a/backend/Gemfile
+++ b/backend/Gemfile
@@ -42,6 +42,6 @@ gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 gem "active_model_serializers", "~> 0.10.7"
 gem "jwt", "~> 2.1"
 gem 'rest-client'
-gem 'nokogiri', '~> 1.6', '>= 1.6.8'
+gem 'nokogiri', '~> 1.11'
 gem 'pry', '~> 0.12.2'
 gem 'open_uri_redirections'
\ No newline at end of file
diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index fe9bc4a..4c434d9 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -99,21 +99,25 @@ GEM
     mime-types (3.3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.1009)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.1)
     minitest (5.13.0)
     msgpack (1.3.1)
     netrc (0.11.0)
     nio4r (2.5.2)
-    nokogiri (1.10.7)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.4)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     open_uri_redirections (0.2.1)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     puma (4.3.1)
       nio4r (~> 2.0)
+    racc (1.5.2)
     rack (2.0.8)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
@@ -189,7 +193,7 @@ DEPENDENCIES
   byebug
   jwt (~> 2.1)
   listen (>= 3.0.5, < 3.2)
-  nokogiri (~> 1.6, >= 1.6.8)
+  nokogiri (~> 1.11)
   open_uri_redirections
   pry (~> 0.12.2)
   puma (~> 4.1)