diff --git a/Gemfile b/Gemfile
index bbe2334f1f..faa8550a68 100644
--- a/Gemfile
+++ b/Gemfile
@@ -158,6 +158,7 @@ group :test, :development do
   gem 'shoulda-matchers'
   gem 'timecop'
   gem 'webdrivers'
+  gem 'debug', '>= 1.0.0'
 end
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index f2e324ce0d..ccb1929713 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -239,6 +239,9 @@ GEM
       debase-ruby_core_source (= 0.10.12)
       msgpack
     debase-ruby_core_source (0.10.12)
+    debug (1.6.1)
+      irb (>= 1.3.6)
+      reline (>= 0.3.1)
     debugger-linecache (1.2.0)
     devise (4.8.1)
       bcrypt (~> 3.0)
@@ -337,7 +340,10 @@ GEM
       ruby-vips (>= 2.0.17, < 3)
     immigrant (0.3.6)
       activerecord (>= 3.0)
+    io-console (0.5.11)
     ipaddress (0.8.3)
+    irb (1.4.1)
+      reline (>= 0.3.0)
     jmespath (1.6.1)
     jquery-rails (4.4.0)
       rails-dom-testing (>= 1, < 3)
@@ -494,6 +500,8 @@ GEM
     redcarpet (3.5.1)
     redis (4.7.1)
     regexp_parser (2.5.0)
+    reline (0.3.1)
+      io-console (~> 0.5)
     request_store (1.5.0)
       rack (>= 1.4)
     responders (3.0.1)
@@ -717,6 +725,7 @@ DEPENDENCIES
   database_cleaner
   db2fog!
   ddtrace
+  debug (>= 1.0.0)
   debugger-linecache
   devise
   devise-encryptable