diff --git a/Gemfile b/Gemfile
index ba94b74..ab18a8e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -59,7 +59,7 @@ group :development do
   gem 'rb-fchange', :require=>false
   gem 'rb-fsevent', :require=>false
   gem 'rb-inotify', :require=>false
-  gem 'debugger', '>= 1.6.6'
+  gem 'byebug'
   gem "binding_of_caller"
 end