diff --git a/.travis.yml b/.travis.yml
index d7cb3a4..67c4422 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,13 +1,10 @@
 sudo: false
 language: ruby
 rvm:
-  - 1.9.3
-  - 2.0.0
   - 2.1.0
   - 2.2.0
   - 2.3.0
   - rbx-2
-  - jruby-19mode
   - jruby-9.0.0.0
 script: "bundle exec rake test"
 
@@ -18,3 +15,12 @@ gemfile:
   - gemfiles/4.0.gemfile
   - gemfiles/4.1.gemfile
   - gemfiles/4.2.gemfile
+
+matrix:
+  allow_failures:
+    - rvm: rbx-2
+  include:
+    - rvm: 2.2.2
+      gemfile: gemfiles/5.0.gemfile
+    - rvm: 2.3.0
+      gemfile: gemfiles/5.0.gemfile
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c84c7a6..ea92a51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+### 2.0.0 / 2016-10-06 ###
+
+* Drop support for EOL'd Ruby 1.9.x and Ruby 2.0, please use version 1.2.0 if you need support for older
+  Ruby versions.
+* Fix compatibility to Ruby >=2.1 and Rails 5 (thanks @einzige)
+
 ### 1.2.0 / 2016-03-27 ###
 
 * Allow to pass `max_size` to the helper (thanks @avokhmin)
diff --git a/README.md b/README.md
index c18a45a..43ad87d 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ This is the official Rails gem for [Transloadit](http://transloadit.com). It all
 you to automate uploading files through the Transloadit REST API.
 
 This gem provides browser integration. If you're looking to do video transcoding / image resizing
-initiated from your own serverside Ruby code, please use the [ruby-sdk](https://github.com/transloadit/ruby-sdk) 
+initiated from your own serverside Ruby code, please use the [ruby-sdk](https://github.com/transloadit/ruby-sdk)
 instead.
 
 ## Install
@@ -51,7 +51,7 @@ auth:
 templates:
   # template identified by template_id
   s3_store: '4d2e...'
-  
+
   # template defined inline
   image_resize:
     steps:
@@ -289,6 +289,15 @@ def example_json
 end
 ```
 
+## Compatibility
+
+At a minimum, this gem should work on MRI 2.3.0, 2.2.0, 2.1.0, Rubinius, and JRuby.
+It may also work on older ruby versions, but support for those Rubies is not guaranteed.
+If it doesn't work on one of the officially supported Rubies, please file a bug report.
+Compatibility patches for other Rubies are welcome.
+
+Testing against these versions is performed automatically by [Travis CI](https://travis-ci.org/transloadit/rails-sdk).
+
 ## License
 
 MIT, see [LICENSE](LICENSE)
diff --git a/gemfiles/5.0.gemfile b/gemfiles/5.0.gemfile
new file mode 100644
index 0000000..e9fef15
--- /dev/null
+++ b/gemfiles/5.0.gemfile
@@ -0,0 +1,4 @@
+source "http://rubygems.org"
+
+gem 'railties', '~> 5.0.0'
+gemspec :path => '../'
diff --git a/lib/transloadit/rails/params_decoder.rb b/lib/transloadit/rails/params_decoder.rb
index 88dca60..a4e4074 100644
--- a/lib/transloadit/rails/params_decoder.rb
+++ b/lib/transloadit/rails/params_decoder.rb
@@ -4,7 +4,11 @@ module Transloadit::Rails::ParamsDecoder
   extend ActiveSupport::Concern
 
   included do
-    before_filter :decode_transloadit_json
+    if respond_to?(:before_action)
+      before_action :decode_transloadit_json
+    else
+      before_filter :decode_transloadit_json
+    end
   end
 
   def decode_transloadit_json
diff --git a/transloadit-rails.gemspec b/transloadit-rails.gemspec
index 57f516a..a8d6fbd 100644
--- a/transloadit-rails.gemspec
+++ b/transloadit-rails.gemspec
@@ -15,7 +15,8 @@ Gem::Specification.new do |gem|
   gem.summary     = 'Official Rails gem for Transloadit'
   gem.description = 'The transloadit-rails gem allows you to automate uploading files through the Transloadit REST API'
 
-  gem.required_rubygems_version = '>= 1.3.6'
+  gem.required_rubygems_version = '>= 2.1.0'
+  gem.required_ruby_version     = '>= 2.1.0'
   gem.rubyforge_project         = 'transloadit-rails'
 
   gem.files         = `git ls-files`.split("\n")
@@ -26,7 +27,7 @@ Gem::Specification.new do |gem|
 
   gem.add_dependency 'transloadit', '>= 1.1.1'
   gem.add_dependency 'railties',    '>= 3'
-  gem.add_dependency 'mime-types', '~> 2.99'
+  gem.add_dependency 'mime-types'
 
   gem.add_development_dependency 'rake'
   gem.add_development_dependency 'test-unit'