diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 2e4e47db2a..e0d6a1673b 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,17 +1,11 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2017-06-13 11:28:56 -0400 using RuboCop version 0.47.0.
+# on 2017-06-13 12:09:49 -0400 using RuboCop version 0.47.0.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
-# Offense count: 2
-Lint/HandleExceptions:
-  Exclude:
-    - 'lib/grape/util/json.rb'
-    - 'lib/grape/util/xml.rb'
-
 # Offense count: 45
 Metrics/AbcSize:
   Max: 44
@@ -19,7 +13,7 @@ Metrics/AbcSize:
 # Offense count: 278
 # Configuration parameters: CountComments, ExcludedMethods.
 Metrics/BlockLength:
-  Max: 3104
+  Max: 3117
 
 # Offense count: 8
 # Configuration parameters: CountComments.
@@ -30,7 +24,7 @@ Metrics/ClassLength:
 Metrics/CyclomaticComplexity:
   Max: 14
 
-# Offense count: 1102
+# Offense count: 1108
 # Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
 # URISchemes: http, https
 Metrics/LineLength:
diff --git a/.travis.yml b/.travis.yml
index 0e07c51d72..342dc0e3b7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,8 +19,14 @@ matrix:
       gemfile: gemfiles/rails_5.gemfile
     - rvm: 2.4.1
       gemfile: gemfiles/multi_json.gemfile
+      script:
+        - bundle exec rake
+        - bundle exec rspec spec/integration/multi_json
     - rvm: 2.4.1
       gemfile: gemfiles/multi_xml.gemfile
+      script:
+        - bundle exec rake
+        - bundle exec rspec spec/integration/multi_xml
     - rvm: 2.3.4
       gemfile: Gemfile
     - rvm: 2.3.4
diff --git a/Appraisals b/Appraisals
index e54f0d0286..5ceb072bc0 100644
--- a/Appraisals
+++ b/Appraisals
@@ -24,9 +24,9 @@ appraise 'rack-edge' do
 end
 
 appraise 'multi_json' do
-  gem 'multi_json'
+  gem 'multi_json', require: 'multi_json'
 end
 
 appraise 'multi_xml' do
-  gem 'multi_xml'
+  gem 'multi_xml', require: 'multi_xml'
 end
diff --git a/README.md b/README.md
index 70226be119..3ecf5a7c17 100644
--- a/README.md
+++ b/README.md
@@ -2567,7 +2567,7 @@ You can disable parsing for a content-type with `nil`. For example, `parser :jso
 
 ## JSON and XML Processors
 
-Grape uses `JSON` and `ActiveSupport::XmlMini` for JSON and XML parsing by default. It also detects and supports [multi_json](https://github.com/intridea/multi_json) and [multi_xml](https://github.com/sferik/multi_xml). Adding those gems to your Gemfile will automatically enable them and allow you to swap the JSON and XML back-ends.
+Grape uses `JSON` and `ActiveSupport::XmlMini` for JSON and XML parsing by default. It also detects and supports [multi_json](https://github.com/intridea/multi_json) and [multi_xml](https://github.com/sferik/multi_xml). Adding those gems to your Gemfile and requiring them will enable them and allow you to swap the JSON and XML back-ends.
 
 ## RESTful Model Representations
 
diff --git a/Rakefile b/Rakefile
index f4e330c030..1df4278400 100644
--- a/Rakefile
+++ b/Rakefile
@@ -7,6 +7,7 @@ Bundler::GemHelper.install_tasks
 require 'rspec/core/rake_task'
 RSpec::Core::RakeTask.new(:spec) do |spec|
   spec.pattern = 'spec/**/*_spec.rb'
+  spec.exclude_pattern = 'spec/integration/**/*_spec.rb'
 end
 
 RSpec::Core::RakeTask.new(:rcov) do |spec|
diff --git a/UPGRADING.md b/UPGRADING.md
index b2ade7a145..41cd80eb40 100644
--- a/UPGRADING.md
+++ b/UPGRADING.md
@@ -7,7 +7,9 @@ Upgrading Grape
 
 Grape no longer uses `multi_json` or `multi_xml` by default and uses `JSON` and `ActiveSupport::XmlMini` instead. This has no visible impact on JSON processing, but the default behavior of the XML parser has changed. For example, an XML POST containing `<user>Bobby T.</user>` was parsed as `Bobby T.` with `multi_xml`, and as now parsed as `{"__content__"=>"Bobby T."}` with `XmlMini`.
 
-To restore previous behavior, add `multi_json` or `multi_xml` to your `Gemfile`, Grape will auto-detect it.
+If you were using `MultiJson.load`, `MultiJson.dump` or `MultiXml.parse`, you can substitute those with `Grape::Json.load`, `Grape::Json.dump`, `::Grape::Xml.parse`, or directly with `JSON.load`, `JSON.dump`, `XmlMini.parse`, etc.
+
+To restore previous behavior, add `multi_json` or `multi_xml` to your `Gemfile` and `require` it.
 
 See [#1623](https://github.com/ruby-grape/grape/pull/1623) for more information.
 
diff --git a/gemfiles/multi_json.gemfile b/gemfiles/multi_json.gemfile
index 46dab9b996..dc2a874e10 100644
--- a/gemfiles/multi_json.gemfile
+++ b/gemfiles/multi_json.gemfile
@@ -2,7 +2,7 @@
 
 source 'https://rubygems.org'
 
-gem 'multi_json'
+gem 'multi_json', require: 'multi_json'
 
 group :development, :test do
   gem 'bundler'
diff --git a/gemfiles/multi_xml.gemfile b/gemfiles/multi_xml.gemfile
index 4b7eeb3afe..af3b7eedfe 100644
--- a/gemfiles/multi_xml.gemfile
+++ b/gemfiles/multi_xml.gemfile
@@ -2,7 +2,7 @@
 
 source 'https://rubygems.org'
 
-gem 'multi_xml'
+gem 'multi_xml', require: 'multi_xml'
 
 group :development, :test do
   gem 'bundler'
diff --git a/lib/grape/util/json.rb b/lib/grape/util/json.rb
index a5686a342f..b0f5addb07 100644
--- a/lib/grape/util/json.rb
+++ b/lib/grape/util/json.rb
@@ -1,8 +1,3 @@
-begin
-  require 'multi_json'
-rescue LoadError
-end
-
 module Grape
   if Object.const_defined? :MultiJson
     Json = ::MultiJson
diff --git a/lib/grape/util/xml.rb b/lib/grape/util/xml.rb
index 34b645a8e2..dd5d296e6b 100644
--- a/lib/grape/util/xml.rb
+++ b/lib/grape/util/xml.rb
@@ -1,8 +1,3 @@
-begin
-  require 'multi_xml'
-rescue LoadError
-end
-
 module Grape
   if Object.const_defined? :MultiXml
     Xml = ::MultiXml
diff --git a/spec/integration/multi_json/json_spec.rb b/spec/integration/multi_json/json_spec.rb
new file mode 100644
index 0000000000..11ae851322
--- /dev/null
+++ b/spec/integration/multi_json/json_spec.rb
@@ -0,0 +1,7 @@
+require 'spec_helper'
+
+describe Grape::Json do
+  it 'uses multi_json' do
+    expect(Grape::Json).to eq(::MultiJson)
+  end
+end
diff --git a/spec/integration/multi_xml/xml_spec.rb b/spec/integration/multi_xml/xml_spec.rb
new file mode 100644
index 0000000000..fce3c51ed8
--- /dev/null
+++ b/spec/integration/multi_xml/xml_spec.rb
@@ -0,0 +1,7 @@
+require 'spec_helper'
+
+describe Grape::Xml do
+  it 'uses multi_xml' do
+    expect(Grape::Xml).to eq(::MultiXml)
+  end
+end