diff --git a/Gemfile b/Gemfile
index 81377d1..5ca3d6d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ gem 'rails',                   '5.0.1'
 gem 'bcrypt',                  '3.1.11'
 gem 'faker',                   '1.6.6'
 gem 'carrierwave',             '0.11.2'
-gem 'mini_magick',             '4.5.1'
+gem 'mini_magick',             '4.9.4'
 gem 'fog',                     '1.38.0'
 gem 'will_paginate',           '3.1.0'
 gem 'bootstrap-will_paginate', '0.0.10'
diff --git a/Gemfile.lock b/Gemfile.lock
index 78c732e..f2ec443 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -260,7 +260,7 @@ GEM
     method_source (0.8.2)
     mime-types (2.99.3)
     mimemagic (0.3.2)
-    mini_magick (4.5.1)
+    mini_magick (4.9.4)
     mini_portile2 (2.2.0)
     minitest (5.10.2)
     minitest-reporters (1.1.9)
@@ -395,7 +395,7 @@ DEPENDENCIES
   jquery-rails (= 4.1.1)
   jquery-ui-rails
   listen (= 3.0.8)
-  mini_magick (= 4.5.1)
+  mini_magick (= 4.9.4)
   minitest-reporters (= 1.1.9)
   mysql2
   paperclip