diff --git a/Gemfile b/Gemfile
index 991d8abe47..c9cce1e266 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,8 @@ group :mongoid do
   gem 'mongoid', '~> 4.0.0'
   gem 'mongoid-paperclip', '>= 0.0.8', require: 'mongoid_paperclip'
   gem 'carrierwave-mongoid', '>= 0.6.3', require: 'carrierwave/mongoid'
+
+  gem 'refile-mongoid', '>= 0.0.1' if RUBY_VERSION >= '2.1.0'
 end
 
 group :active_record do
@@ -47,13 +49,15 @@ group :test do
   gem 'paperclip', ['>= 3.4', '!= 4.3.0']
   gem 'poltergeist', '~> 1.5'
   gem 'rack-cache', require: 'rack/cache'
-  gem 'refile', '>= 0.5.5', require: 'refile/rails'
-  gem 'refile-mini_magick', '>= 0.1.0'
-  gem 'refile-mongoid', '>= 0.0.1'
   gem 'rspec-rails', '>= 2.14'
   gem 'rubocop', '~> 0.31.0'
   gem 'simplecov', '>= 0.9', require: false
   gem 'timecop', '>= 0.5'
+
+  if RUBY_VERSION >= '2.1.0'
+    gem 'refile', '~> 0.5', require: 'refile/rails'
+    gem 'refile-mini_magick', '>= 0.1.0'
+  end
 end
 
 gemspec
diff --git a/gemfiles/rails_4.0.gemfile b/gemfiles/rails_4.0.gemfile
index 0759a9f598..bef2e484bd 100644
--- a/gemfiles/rails_4.0.gemfile
+++ b/gemfiles/rails_4.0.gemfile
@@ -5,12 +5,15 @@ source "https://rubygems.org"
 gem "appraisal", ">= 2.0"
 gem "devise", ">= 3.2"
 gem "rails", "~> 4.0.0"
+gem "sass-rails", "~> 5.0"
 gem "test-unit"
 
 group :mongoid do
   gem "mongoid", "~> 4.0.0"
   gem "mongoid-paperclip", ">= 0.0.8", :require => "mongoid_paperclip"
   gem "carrierwave-mongoid", ">= 0.6.3", :require => "carrierwave/mongoid"
+
+  gem "refile-mongoid", ">= 0.0.1" if RUBY_VERSION >= "2.1.0"
 end
 
 group :active_record do
@@ -51,13 +54,15 @@ group :test do
   gem "paperclip", [">= 3.4", "!= 4.3.0"]
   gem "poltergeist", "~> 1.5"
   gem "rack-cache", :require => "rack/cache"
-  gem 'refile', '>= 0.5.5', require: 'refile/rails'
-  gem 'refile-mini_magick', '>= 0.1.0'
-  gem 'refile-mongoid', '>= 0.0.1'
   gem "rspec-rails", ">= 2.14"
   gem "rubocop", "~> 0.31.0"
   gem "simplecov", ">= 0.9", :require => false
   gem "timecop", ">= 0.5"
+
+  if RUBY_VERSION >= "2.1.0"
+    gem "refile", "~> 0.5", :require => "refile/rails"
+    gem "refile-mini_magick", ">= 0.1.0"
+  end
 end
 
 gemspec :path => "../"
diff --git a/gemfiles/rails_4.1.gemfile b/gemfiles/rails_4.1.gemfile
index 442a4287df..a0b2847eb6 100644
--- a/gemfiles/rails_4.1.gemfile
+++ b/gemfiles/rails_4.1.gemfile
@@ -5,11 +5,14 @@ source "https://rubygems.org"
 gem "appraisal", ">= 2.0"
 gem "devise", ">= 3.2"
 gem "rails", "~> 4.1.0"
+gem "sass-rails", "~> 5.0"
 
 group :mongoid do
   gem "mongoid", "~> 4.0.0"
   gem "mongoid-paperclip", ">= 0.0.8", :require => "mongoid_paperclip"
   gem "carrierwave-mongoid", ">= 0.6.3", :require => "carrierwave/mongoid"
+
+  gem "refile-mongoid", ">= 0.0.1" if RUBY_VERSION >= "2.1.0"
 end
 
 group :active_record do
@@ -50,13 +53,15 @@ group :test do
   gem "paperclip", [">= 3.4", "!= 4.3.0"]
   gem "poltergeist", "~> 1.5"
   gem "rack-cache", :require => "rack/cache"
-  gem 'refile', '>= 0.5.5', require: 'refile/rails'
-  gem 'refile-mini_magick', '>= 0.1.0'
-  gem 'refile-mongoid', '>= 0.0.1'
   gem "rspec-rails", ">= 2.14"
   gem "rubocop", "~> 0.31.0"
   gem "simplecov", ">= 0.9", :require => false
   gem "timecop", ">= 0.5"
+
+  if RUBY_VERSION >= "2.1.0"
+    gem "refile", "~> 0.5", :require => "refile/rails"
+    gem "refile-mini_magick", ">= 0.1.0"
+  end
 end
 
 gemspec :path => "../"
diff --git a/gemfiles/rails_4.2.gemfile b/gemfiles/rails_4.2.gemfile
index 27c3e23734..8e330fba4b 100644
--- a/gemfiles/rails_4.2.gemfile
+++ b/gemfiles/rails_4.2.gemfile
@@ -11,6 +11,8 @@ group :mongoid do
   gem "mongoid", "~> 4.0.0"
   gem "mongoid-paperclip", ">= 0.0.8", :require => "mongoid_paperclip"
   gem "carrierwave-mongoid", ">= 0.6.3", :require => "carrierwave/mongoid"
+
+  gem "refile-mongoid", ">= 0.0.1" if RUBY_VERSION >= "2.1.0"
 end
 
 group :active_record do
@@ -51,13 +53,15 @@ group :test do
   gem "paperclip", [">= 3.4", "!= 4.3.0"]
   gem "poltergeist", "~> 1.5"
   gem "rack-cache", :require => "rack/cache"
-  gem 'refile', '>= 0.5.5', require: 'refile/rails'
-  gem 'refile-mini_magick', '>= 0.1.0'
-  gem 'refile-mongoid', '>= 0.0.1'
   gem "rspec-rails", ">= 2.14"
   gem "rubocop", "~> 0.31.0"
   gem "simplecov", ">= 0.9", :require => false
   gem "timecop", ">= 0.5"
+
+  if RUBY_VERSION >= "2.1.0"
+    gem "refile", "~> 0.5", :require => "refile/rails"
+    gem "refile-mini_magick", ">= 0.1.0"
+  end
 end
 
 gemspec :path => "../"
diff --git a/lib/rails_admin/config/fields.rb b/lib/rails_admin/config/fields.rb
index 33e84a2a2d..b3b6e4a73f 100644
--- a/lib/rails_admin/config/fields.rb
+++ b/lib/rails_admin/config/fields.rb
@@ -82,5 +82,5 @@ def self.register_factory(&block)
 require 'rails_admin/config/fields/factories/paperclip'
 require 'rails_admin/config/fields/factories/dragonfly'
 require 'rails_admin/config/fields/factories/carrierwave'
-require 'rails_admin/config/fields/factories/refile'
+require 'rails_admin/config/fields/factories/refile' if RUBY_VERSION >= '2.1.0'
 require 'rails_admin/config/fields/factories/association'
diff --git a/lib/rails_admin/config/fields/types/all.rb b/lib/rails_admin/config/fields/types/all.rb
index 920b57c46f..57ae785c79 100644
--- a/lib/rails_admin/config/fields/types/all.rb
+++ b/lib/rails_admin/config/fields/types/all.rb
@@ -9,7 +9,7 @@
 require 'rails_admin/config/fields/types/file_upload'
 require 'rails_admin/config/fields/types/paperclip'
 require 'rails_admin/config/fields/types/carrierwave'
-require 'rails_admin/config/fields/types/refile'
+require 'rails_admin/config/fields/types/refile' if RUBY_VERSION >= '2.1.0'
 require 'rails_admin/config/fields/types/float'
 require 'rails_admin/config/fields/types/has_and_belongs_to_many_association'
 require 'rails_admin/config/fields/types/has_many_association'
diff --git a/spec/controllers/rails_admin/main_controller_spec.rb b/spec/controllers/rails_admin/main_controller_spec.rb
index 445d2f2a27..b0610fa823 100644
--- a/spec/controllers/rails_admin/main_controller_spec.rb
+++ b/spec/controllers/rails_admin/main_controller_spec.rb
@@ -325,7 +325,7 @@ class TeamWithNumberedPlayers < Team
         field :paperclip_asset do
           delete_method :delete_paperclip_asset
         end
-        field :refile_asset
+        field :refile_asset if RUBY_VERSION >= '2.1.0'
       end
       controller.params = HashWithIndifferentAccess.new(
         'field_test' => {
@@ -337,10 +337,8 @@ class TeamWithNumberedPlayers < Team
           'retained_dragonfly_asset' => 'test',
           'paperclip_asset' => 'test',
           'delete_paperclip_asset' => 'test',
-          'refile_asset' => 'test',
-          'remove_refile_asset' => 'test',
           'should_not_be_here' => 'test',
-        },
+        }.merge(RUBY_VERSION >= '2.1.0' ? {'refile_asset' => 'test', 'remove_refile_asset' => 'test'} : {}),
       )
 
       controller.send(:sanitize_params_for!, :create, RailsAdmin.config(FieldTest), controller.params['field_test'])
@@ -354,9 +352,7 @@ class TeamWithNumberedPlayers < Team
           'retained_dragonfly_asset' => 'test',
           'paperclip_asset' => 'test',
           'delete_paperclip_asset' => 'test',
-          'refile_asset' => 'test',
-          'remove_refile_asset' => 'test',
-        })
+        }.merge(RUBY_VERSION >= '2.1.0' ? {'refile_asset' => 'test', 'remove_refile_asset' => 'test'} : {}))
     end
 
     it 'allows for polymorphic associations parameters' do
diff --git a/spec/dummy_app/Gemfile b/spec/dummy_app/Gemfile
index 5e069ddc6a..1a7111e3ff 100644
--- a/spec/dummy_app/Gemfile
+++ b/spec/dummy_app/Gemfile
@@ -36,6 +36,8 @@ group :mongoid do
   gem 'mongoid', '~> 4.0.0.beta1'
   gem 'mongoid-paperclip', '>= 0.0.8', require: 'mongoid_paperclip'
   gem 'carrierwave-mongoid', '>= 0.6.3', require: 'carrierwave/mongoid'
+
+  gem 'refile-mongoid', '>= 0.0.1' if RUBY_VERSION >= '2.1.0'
 end
 
 gem 'carrierwave', '>= 0.8'
@@ -45,9 +47,11 @@ gem 'mini_magick', '>= 3.4'
 gem 'mlb', '>= 0.7'
 gem 'paperclip', '>= 3.4'
 gem 'rails_admin', path: '../../'
-gem 'refile', '>= 0.5.5', require: 'refile/rails'
-gem 'refile-mini_magick', '>= 0.1.0'
-gem 'refile-mongoid', '>= 0.0.1'
+
+if RUBY_VERSION >= '2.1.0'
+  gem 'refile', '~> 0.5', require: 'refile/rails'
+  gem 'refile-mini_magick', '>= 0.1.0'
+end
 
 # Gems used only for assets and not required
 # in production environments by default.
diff --git a/spec/dummy_app/app/active_record/field_test.rb b/spec/dummy_app/app/active_record/field_test.rb
index 2a282af435..1c6ef8eb74 100644
--- a/spec/dummy_app/app/active_record/field_test.rb
+++ b/spec/dummy_app/app/active_record/field_test.rb
@@ -11,5 +11,6 @@ class FieldTest < ActiveRecord::Base
 
   dragonfly_accessor :dragonfly_asset
   mount_uploader :carrierwave_asset, CarrierwaveUploader
-  attachment :refile_asset
+
+  attachment :refile_asset if RUBY_VERSION >= '2.1.0'
 end
diff --git a/spec/dummy_app/app/mongoid/field_test.rb b/spec/dummy_app/app/mongoid/field_test.rb
index d0c63b1313..51e1e121f5 100644
--- a/spec/dummy_app/app/mongoid/field_test.rb
+++ b/spec/dummy_app/app/mongoid/field_test.rb
@@ -3,7 +3,6 @@ class FieldTest
   include Mongoid::Paperclip
   include ActiveModel::ForbiddenAttributesProtection
   extend Dragonfly::Model
-  extend Refile::Mongoid::Attachment
 
   field :name, type: String
   field :title, type: String
@@ -51,10 +50,15 @@ class FieldTest
   field :dragonfly_asset_uid
   dragonfly_accessor :dragonfly_asset
   mount_uploader :carrierwave_asset, CarrierwaveUploader
-  field :refile_asset_filename
-  field :refile_asset_size
-  field :refile_asset_content_type
-  attachment :refile_asset
+
+  if RUBY_VERSION >= '2.1.0'
+    extend Refile::Mongoid::Attachment
+
+    field :refile_asset_filename
+    field :refile_asset_size
+    field :refile_asset_content_type
+    attachment :refile_asset
+  end
 
   validates :short_text, length: {maximum: 255}
 end
diff --git a/spec/rails_admin/config/fields/base_spec.rb b/spec/rails_admin/config/fields/base_spec.rb
index d247cb404b..370ad9c26e 100644
--- a/spec/rails_admin/config/fields/base_spec.rb
+++ b/spec/rails_admin/config/fields/base_spec.rb
@@ -92,9 +92,11 @@ class CommentReversed < Tableless
       end
     end
 
-    context 'of a Refile installation' do
-      it 'is a _id field' do
-        expect(RailsAdmin.config(FieldTest).fields.detect { |f| f.name == :refile_asset }.children_fields).to eq([:refile_asset_id, :refile_asset_filename, :refile_asset_size, :refile_asset_content_type])
+    if RUBY_VERSION >= '2.1.0'
+      context 'of a Refile installation' do
+        it 'is a _id field' do
+          expect(RailsAdmin.config(FieldTest).fields.detect { |f| f.name == :refile_asset }.children_fields).to eq([:refile_asset_id, :refile_asset_filename, :refile_asset_size, :refile_asset_content_type])
+        end
       end
     end
   end
@@ -264,8 +266,10 @@ class CommentReversed < Tableless
         expect(RailsAdmin.config(FieldTest).fields.detect { |f| f.name == :carrierwave_asset }.searchable_columns.collect { |c| c[:column] }).to eq(['field_tests.carrierwave_asset'])
       end
 
-      it 'of refile should find the underlying column on the base table' do
-        expect(RailsAdmin.config(FieldTest).fields.detect { |f| f.name == :refile_asset }.searchable_columns.collect { |c| c[:column] }).to eq(['field_tests.refile_asset_id'])
+      if RUBY_VERSION >= '2.1.0'
+        it 'of refile should find the underlying column on the base table' do
+          expect(RailsAdmin.config(FieldTest).fields.detect { |f| f.name == :refile_asset }.searchable_columns.collect { |c| c[:column] }).to eq(['field_tests.refile_asset_id'])
+        end
       end
     end
   end
@@ -299,9 +303,11 @@ class CommentReversed < Tableless
         expect(RailsAdmin.config(FieldTest).fields.detect { |f| f.name == :carrierwave_asset }.sortable).to eq(:carrierwave_asset)
       end
 
-      it 'of refile should target the first children field' do
-        expect(RailsAdmin.config(FieldTest).fields.detect { |f| f.name == :refile_asset }.searchable).to eq(:refile_asset_id)
-        expect(RailsAdmin.config(FieldTest).fields.detect { |f| f.name == :refile_asset }.sortable).to eq(:refile_asset_id)
+      if RUBY_VERSION >= '2.1.0'
+        it 'of refile should target the first children field' do
+          expect(RailsAdmin.config(FieldTest).fields.detect { |f| f.name == :refile_asset }.searchable).to eq(:refile_asset_id)
+          expect(RailsAdmin.config(FieldTest).fields.detect { |f| f.name == :refile_asset }.sortable).to eq(:refile_asset_id)
+        end
       end
     end
   end
diff --git a/spec/rails_admin/config/fields/types/file_upload_spec.rb b/spec/rails_admin/config/fields/types/file_upload_spec.rb
index 6caff94099..3aa051e324 100644
--- a/spec/rails_admin/config/fields/types/file_upload_spec.rb
+++ b/spec/rails_admin/config/fields/types/file_upload_spec.rb
@@ -18,7 +18,7 @@
       expect(RailsAdmin.config(FieldTest).field(:carrierwave_asset).allowed_methods.collect(&:to_s)).to eq %w(carrierwave_asset remove_carrierwave_asset carrierwave_asset_cache)
       expect(RailsAdmin.config(FieldTest).field(:dragonfly_asset).allowed_methods.collect(&:to_s)).to eq %w(dragonfly_asset remove_dragonfly_asset retained_dragonfly_asset)
       expect(RailsAdmin.config(FieldTest).field(:paperclip_asset).allowed_methods.collect(&:to_s)).to eq %w(paperclip_asset delete_paperclip_asset)
-      expect(RailsAdmin.config(FieldTest).field(:refile_asset).allowed_methods.collect(&:to_s)).to eq %w(refile_asset remove_refile_asset)
+      expect(RailsAdmin.config(FieldTest).field(:refile_asset).allowed_methods.collect(&:to_s)).to eq %w(refile_asset remove_refile_asset) if RUBY_VERSION >= '2.1.0'
     end
   end