diff --git a/Gemfile b/Gemfile
index db5f13de315..698477e358c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -196,11 +196,6 @@ gem 'lru_redux'
 
 gem 'flamegraph', require: false
 gem 'rack-mini-profiler', require: false
-begin
-  gem 'memory_profiler', require: false, platform: :mri_21
-rescue
-  puts "WARNING: you are running an old version of bundler, please run 'gem update bundler'"
-end
 
 # used for caching, optional
 gem 'rack-cors', require: false
diff --git a/config/initializers/06-mini_profiler.rb b/config/initializers/06-mini_profiler.rb
index 34d6193ce39..8c5f385f7c5 100644
--- a/config/initializers/06-mini_profiler.rb
+++ b/config/initializers/06-mini_profiler.rb
@@ -2,7 +2,6 @@
 if Rails.configuration.respond_to?(:enable_mini_profiler) && Rails.configuration.enable_mini_profiler
   require 'rack-mini-profiler'
   require 'flamegraph'
-  require 'memory_profiler' if RUBY_VERSION >= "2.1.0"
   # initialization is skipped so trigger it
   Rack::MiniProfilerRails.initialize!(Rails.application)
 end