diff --git a/.travis.yml b/.travis.yml
index 3221092..b000dba 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,11 +3,9 @@ before_install: gem install bundler
 cache: bundler
 
 gemfile:
-  - gemfiles/rails_4_2.gemfile
+  - gemfiles/rails_5_0.gemfile
 
 rvm:
-  - "2.3.7"
-  - "2.4.4"
   - "2.5.1"
 
 script: 'bundle exec rspec'
diff --git a/Appraisals b/Appraisals
index c0ccdd3..b54048b 100644
--- a/Appraisals
+++ b/Appraisals
@@ -1,11 +1,3 @@
-appraise "rails_4_0" do
-  gem "rails", "~> 4.0.13"
-end
-
-appraise "rails_4_1" do
-  gem "rails", "~> 4.1.14"
-end
-
-appraise "rails_4_2" do
-  gem "rails", "~> 4.2.10"
+appraise "rails_5_0" do
+  gem "rails", "~> 5.0.0"
 end
\ No newline at end of file
diff --git a/Gemfile b/Gemfile
index 914b8d0..943c239 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,8 +2,7 @@ source 'http://rubygems.org'
 
 gemspec
 
-gem 'rake'
-gem 'rails', '~> 4.2.10'
+gem 'rails', '~> 5.0.0'
 gem 'rspec'
 gem 'rspec-rails', '~> 3.7'
 gem 'timecop'
diff --git a/lib/validates_timeliness/version.rb b/lib/validates_timeliness/version.rb
index 7085aa9..a911758 100644
--- a/lib/validates_timeliness/version.rb
+++ b/lib/validates_timeliness/version.rb
@@ -1,3 +1,3 @@
 module ValidatesTimeliness
-  VERSION = '4.0.2'
+  VERSION = '5.0.0-pre'
 end