diff --git a/CHANGELOG.md b/CHANGELOG.md
index 29a57c5..23443c9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## ContactUs 1.0.0 (Jan 15th 2015)
+
+* Fix Rails 4.2 deliver_later deprecation.
+* Require Ruby 2+
+
 ## ContactUs 0.5.4 (Jun 25th 2014)
 
 * Added Greek locale.
diff --git a/Gemfile b/Gemfile
index 3e7a95d..041a08e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,4 @@
-source "http://rubygems.org"
+source "https://rubygems.org"
 
 # Specify your gem's dependencies in contact_us.gemspec
 gemspec
diff --git a/app/models/contact_us/contact.rb b/app/models/contact_us/contact.rb
index e508113..2cb72dc 100644
--- a/app/models/contact_us/contact.rb
+++ b/app/models/contact_us/contact.rb
@@ -18,7 +18,7 @@ def initialize(attributes = {})
 
   def save
     if self.valid?
-      ContactUs::ContactMailer.contact_email(self).deliver
+      ContactUs::ContactMailer.contact_email(self).deliver_now
       return true
     end
     return false
diff --git a/contact_us.gemspec b/contact_us.gemspec
index 4eda2c9..b19f9e4 100644
--- a/contact_us.gemspec
+++ b/contact_us.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |s|
   s.summary     = %q{Gem providing simple Contact Us functionality with a Rails 3+ Engine.}
   s.description = %q{A Rails 3+ Engine providing a basic contact form.  I used Formtastic to keep things simple, and to hook into your apps custom Formtastic stylesheets.}
 
-  s.required_ruby_version = '>= 1.9.3'
+  s.required_ruby_version = '>= 2.0.0'
   s.rubyforge_project = "contact_us"
 
   s.files         = `git ls-files`.split("\n")
@@ -20,12 +20,12 @@ Gem::Specification.new do |s|
   s.require_paths = ["lib"]
 
   s.add_development_dependency "capybara",         "~> 2.0"
-  s.add_development_dependency "rspec-rails",      "~> 2.13"
+  s.add_development_dependency "rspec-rails",      "~> 2.99"
   s.add_development_dependency "shoulda-matchers", ">= 1.5.4"
   s.add_development_dependency "simplecov",        "~> 0.7"
   s.add_development_dependency "sqlite3",          "~> 1.3.5"
   s.add_development_dependency "formtastic",       ">= 2.1.0"
   s.add_development_dependency "simple_form"
 
-  s.add_runtime_dependency "rails", ">= 4.0.0"
+  s.add_runtime_dependency "rails", ">= 4.2.0"
 end
diff --git a/lib/contact_us/version.rb b/lib/contact_us/version.rb
index 33fed3a..51dd8e3 100644
--- a/lib/contact_us/version.rb
+++ b/lib/contact_us/version.rb
@@ -1,3 +1,3 @@
 module ContactUs
-  VERSION = "0.5.4"
+  VERSION = "1.0.0"
 end
diff --git a/spec/mailers/contact_us/contact_mailer_spec.rb b/spec/mailers/contact_us/contact_mailer_spec.rb
index 92b9be2..a870025 100644
--- a/spec/mailers/contact_us/contact_mailer_spec.rb
+++ b/spec/mailers/contact_us/contact_mailer_spec.rb
@@ -47,13 +47,13 @@
       end
 
       it "should deliver successfully" do
-        lambda { ContactUs::ContactMailer.contact_email(@contact).deliver }.should_not raise_error
+        lambda { ContactUs::ContactMailer.contact_email(@contact).deliver_now }.should_not raise_error
       end
 
       describe "and delivered" do
 
         it "should be added to the delivery queue" do
-          lambda { ContactUs::ContactMailer.contact_email(@contact).deliver }.should change(ActionMailer::Base.deliveries,:size).by(1)
+          lambda { ContactUs::ContactMailer.contact_email(@contact).deliver_now }.should change(ActionMailer::Base.deliveries,:size).by(1)
         end
 
       end
diff --git a/spec/models/contact_us/contact_spec.rb b/spec/models/contact_us/contact_spec.rb
index c88946b..94d32b9 100644
--- a/spec/models/contact_us/contact_spec.rb
+++ b/spec/models/contact_us/contact_spec.rb
@@ -48,7 +48,7 @@
 
       it 'should send email and return true if records valid' do
         mail = Mail.new(:from=>"Valid@Email.com", :to => "test@test.com")
-        mail.stub(:deliver).and_return(true)
+        mail.stub(:deliver_now).and_return(true)
         contact = ContactUs::Contact.new(:email => "Valid@Email.com", :message => "Test")
         ContactUs::ContactMailer.should_receive(:contact_email).with(contact).and_return(mail)
         contact.save.should eql(true)