diff --git a/Gemfile b/Gemfile
index 6abc37bd..8db48f2e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -26,7 +26,7 @@ gem 'thread'
 gem 'scrypt'
 gem 'rack-cache'
 
-platform :mri do
+platform :mri, :rbx do
   gem 'magic' # sudo apt-get install file, For OSX: brew install libmagic
   gem 'pg'
   gem 'sequel_pg', require: nil
@@ -35,7 +35,7 @@ platform :mri do
 
   group :development, :test do
     gem 'pry'
-    gem 'pry-byebug'
+    # gem 'pry-byebug', platform: 'mri'
   end
 end
 
@@ -67,7 +67,7 @@ group :test do
   gem 'webmock',               require: nil
   gem 'stripe-ruby-mock',      '~> 2.0.1', require: 'stripe_mock'
 
-  platform :mri do
+  platform :mri, :rbx do
     gem 'simplecov',        require: nil
   end
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index fd90fb5b..2d32e81e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -18,9 +18,6 @@ GEM
     bcrypt (3.1.7)
     blankslate (3.1.3)
     builder (3.2.2)
-    byebug (2.7.0)
-      columnize (~> 0.3)
-      debugger-linecache (~> 1.2)
     capybara (2.4.1)
       mime-types (>= 1.16)
       nokogiri (>= 1.3.3)
@@ -38,7 +35,6 @@ GEM
     cocaine (0.5.4)
       climate_control (>= 0.0.3, < 1.0)
     coderay (1.1.0)
-    columnize (0.8.9)
     connection_pool (2.0.0)
     crack (0.4.2)
       safe_yaml (~> 1.0.0)
@@ -47,7 +43,6 @@ GEM
       nokogiri (>= 1.4.2)
       rack (>= 1.1.0)
       uuidtools (~> 2.1.1)
-    debugger-linecache (1.2.0)
     docile (1.1.3)
     erubis (2.7.0)
     extlib (0.9.16)
@@ -123,9 +118,6 @@ GEM
       coderay (~> 1.0)
       method_source (~> 0.8)
       slop (~> 3.4)
-    pry-byebug (1.3.2)
-      byebug (~> 2.7)
-      pry (~> 0.9.12)
     puma (2.8.1)
       rack (>= 1.1, < 2.0)
     rack (1.5.2)
@@ -248,7 +240,6 @@ DEPENDENCIES
   pg
   poltergeist
   pry
-  pry-byebug
   puma
   rack-cache
   rack-recaptcha