diff --git a/Gemfile b/Gemfile
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 
 #rails
-gem 'rails', '~>4.2.0'
+gem 'rails', '~>5.0'
 gem 'activerecord-session_store'