diff --git a/Gemfile b/Gemfile
index 75baf5f..788f1c0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ gem 'fog', '1.38.0'
 gem 'haml-rails'
 gem 'jbuilder'
 gem 'jquery-rails'
-gem 'mini_magick', '4.5.1'
+gem 'mini_magick', '4.9.4'
 gem 'pg', '~> 0.20'
 gem 'puma'
 gem 'omniauth-google-oauth2'
diff --git a/Gemfile.lock b/Gemfile.lock
index c1f316b..3d99502 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -254,7 +254,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mimemagic (0.3.2)
-    mini_magick (4.5.1)
+    mini_magick (4.9.4)
     mini_portile2 (2.4.0)
     minitest (5.14.0)
     multi_json (1.14.1)
@@ -417,7 +417,7 @@ DEPENDENCIES
   jbuilder
   jquery-rails
   listen
-  mini_magick (= 4.5.1)
+  mini_magick (= 4.9.4)
   omniauth-google-oauth2
   pg (~> 0.20)
   puma