diff --git a/temp_file/Gemfile b/temp_file/Gemfile
index 1e92347..2dba11c 100644
--- a/temp_file/Gemfile
+++ b/temp_file/Gemfile
@@ -239,7 +239,7 @@ else
   # gem "websocket-rails"
 
   #file uploading and carrierwave
-  gem "mini_magick"
+  gem "mini_magick", "5.1.2"
   gem 'carrierwave'#, '0.11.2'
   gem 'carrierwave-mongoid', :require => 'carrierwave/mongoid'
   gem 'zip-zip'