diff --git a/.gitignore b/.gitignore
index 45d0610..aaee826 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 .rvmrc
 .ruby-version
 *.gem
-Gemfile.lock
+Gemfile*lock
diff --git a/.travis.yml b/.travis.yml
index e69414c..1d6e59f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,3 +13,27 @@ rvm:
   - 2.4.0
   - jruby-9.1.7.0
   - rbx-3
+gemfile:
+  - Gemfile
+  - Gemfile.with_dry_monads_03
+  - Gemfile.with_dry_monads_04
+matrix:
+  exclude:
+  - rvm: 1.9.3
+    gemfile: Gemfile.with_dry_monads_03
+  - rvm: jruby-1.7.26
+    gemfile: Gemfile.with_dry_monads_03
+  - rvm: rbx-3
+    gemfile: Gemfile.with_dry_monads_03
+  - rvm: 2.0.0
+    gemfile: Gemfile.with_dry_monads_03
+  - rvm: 1.9.3
+    gemfile: Gemfile.with_dry_monads_04
+  - rvm: jruby-1.7.26
+    gemfile: Gemfile.with_dry_monads_04
+  - rvm: rbx-3
+    gemfile: Gemfile.with_dry_monads_04
+  - rvm: 2.0.0
+    gemfile: Gemfile.with_dry_monads_04
+  - rvm: 2.1.10
+    gemfile: Gemfile.with_dry_monads_04
diff --git a/Gemfile b/Gemfile
index e3d7ebf..01948f9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,6 @@
 source 'http://rubygems.org'
+# gem 'dry-monads'
+
 gemspec
 
 platforms :rbx do
diff --git a/Gemfile.with_dry_monads_03 b/Gemfile.with_dry_monads_03
new file mode 100644
index 0000000..7106b7e
--- /dev/null
+++ b/Gemfile.with_dry_monads_03
@@ -0,0 +1,10 @@
+source 'http://rubygems.org'
+gem 'dry-monads', '< 0.4'
+
+gemspec
+
+platforms :rbx do
+  gem 'rubysl', '~> 2.0'
+  gem 'psych'
+  gem 'rubinius-developer_tools'
+end
diff --git a/Gemfile.with_dry_monads_04 b/Gemfile.with_dry_monads_04
new file mode 100644
index 0000000..67d52bd
--- /dev/null
+++ b/Gemfile.with_dry_monads_04
@@ -0,0 +1,10 @@
+source 'http://rubygems.org'
+gem 'dry-monads', '>= 0.4'
+
+gemspec
+
+platforms :rbx do
+  gem 'rubysl', '~> 2.0'
+  gem 'psych'
+  gem 'rubinius-developer_tools'
+end
diff --git a/lib/mutations/outcome.rb b/lib/mutations/outcome.rb
index 177e039..624845c 100644
--- a/lib/mutations/outcome.rb
+++ b/lib/mutations/outcome.rb
@@ -1,5 +1,20 @@
 module Mutations
-  class Outcome
+  module Outcome
+    def self.new(is_success, result, errors, inputs)
+      if defined?(::Mutations::SuccessOutcome)
+        if is_success
+          ::Mutations::SuccessOutcome.new(result, inputs: inputs)
+        else
+          ::Mutations::FailureOutcome.new(errors, inputs: inputs)
+        end
+      else
+        ::Mutations::ClassicOutcome.new(is_success, result, errors, inputs)
+      end
+    end
+  end
+
+  class ClassicOutcome
+    include Outcome
     attr_reader :result, :errors, :inputs
 
     def initialize(is_success, result, errors, inputs)
@@ -10,4 +25,48 @@ def success?
       @success
     end
   end
+  
+  begin
+    require 'dry/monads/either'
+
+    module MonadicOutcome
+      def initialize(value, options = {})
+        super(value)
+        @inputs = options[:inputs]
+      end
+      
+      def result(*args)
+        args.empty? ? (@value || @right if success?) : super
+      end
+      
+      def errors
+        @value || @left unless success?
+      end
+    end
+
+    class SuccessOutcome < Dry::Monads::Either::Right
+      include Outcome
+      include MonadicOutcome
+      
+      attr_reader :inputs
+    end
+
+    class FailureOutcome < Dry::Monads::Either::Left
+      include Outcome
+      include MonadicOutcome
+
+      attr_reader :inputs
+
+      def or_fmap(*args, &block)
+        SuccessOutcome.new(self.or(*args, &block), inputs: @inputs)
+      end
+
+      def flip
+        SuccessOutcome.new(@value, inputs: @inputs)
+      end
+    end
+  rescue LoadError
+    puts "dry/monads integration not available. Load the dry-monads gem before mutations if needed."
+  end
+  
 end