diff --git a/.gitignore b/.gitignore
index 6dc8f75..d87d4be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,7 +4,6 @@
 .config
 .yardoc
 Gemfile.lock
-Mongoid4.gemfile.lock
 InstalledFiles
 _yardoc
 coverage
diff --git a/.travis.yml b/.travis.yml
index 24e9c53..6a850d7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,12 +8,5 @@ rvm:
   - 2.1.2
   - jruby-19mode
 
-gemfile:
-  - Gemfile
-  - Mongoid4.gemfile
 services:
   - mongodb
-branches:
-  only:
-    - master
-    - feature-mongoid4
diff --git a/Mongoid4.gemfile b/Mongoid4.gemfile
deleted file mode 100644
index 43739ec..0000000
--- a/Mongoid4.gemfile
+++ /dev/null
@@ -1,6 +0,0 @@
-source 'https://rubygems.org'
-
-gem 'mongoid', '~> 4.0.0', github: 'mongoid/mongoid'
-
-# Specify your gem's dependencies in mongoid-enum.gemspec
-gemspec
diff --git a/mongoid-enum.gemspec b/mongoid-enum.gemspec
index 19be000..df33d51 100644
--- a/mongoid-enum.gemspec
+++ b/mongoid-enum.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_runtime_dependency "mongoid", ["> 3.0", "< 4.1"]
+  spec.add_runtime_dependency "mongoid", "~> 4.0"
 
   spec.add_development_dependency "bundler", "~> 1.3"
   spec.add_development_dependency "rake"