diff --git a/.travis.yml b/.travis.yml
index 79ff08ea..9282a793 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ gemfile:
   - gemfiles/rails30.gemfile
   - gemfiles/rails31.gemfile
   - gemfiles/rails32.gemfile
+  - gemfiles/rails4.gemfile
 rvm:
   - 1.8.7
   - 1.9.2
@@ -28,5 +29,13 @@ matrix:
       gemfile: gemfiles/rails23.gemfile
     - rvm: rbx-19mode
       gemfile: gemfiles/rails23.gemfile
+    - rvm: 1.8.7
+      gemfile: gemfiles/rails4.gemfile
+    - rvm: 1.9.2
+      gemfile: gemfiles/rails4.gemfile
+    - rvm: jruby-18mode
+      gemfile: gemfiles/rails4.gemfile
+    - rvm: rbx-18mode
+      gemfile: gemfiles/rails4.gemfile
   allow_failures:
     - rvm: jruby-head
diff --git a/Appraisals b/Appraisals
index 5c4fae9f..8f9ec33b 100644
--- a/Appraisals
+++ b/Appraisals
@@ -14,4 +14,9 @@ appraise "rails32" do
   gem "rails", "~> 3.2.8"
 end
 
+appraise "rails4" do
+  gem "rails", "~> 4.0.0"
+  gem "activerecord-session_store", "~> 0.0.1", :require => false
+end
+
 # vim: filetype=ruby
diff --git a/gemfiles/rails4.gemfile b/gemfiles/rails4.gemfile
new file mode 100644
index 00000000..27ff7619
--- /dev/null
+++ b/gemfiles/rails4.gemfile
@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "http://rubygems.org"
+
+gem "rails", "~> 4.0.0"
+gem "activerecord-session_store", "~> 0.0.1", :require=>false
+
+gemspec :path=>"../"
\ No newline at end of file
diff --git a/lib/casclient/client.rb b/lib/casclient/client.rb
index fc6fc917..6be7079f 100644
--- a/lib/casclient/client.rb
+++ b/lib/casclient/client.rb
@@ -112,12 +112,13 @@ def proxy_url
       @proxy_url || (cas_base_url + "/proxy")
     end
 
-    def validate_service_ticket(st)
+    def validate_service_ticket(st,consume=true)
       uri = URI.parse(validate_url)
       h = uri.query ? query_to_hash(uri.query) : {}
       h['service'] = st.service
       h['ticket'] = st.ticket
-      h['renew'] = "1" if st.renew
+      h['renew'] = '1' if st.renew
+      h['consume'] = consume.to_s
       h['pgtUrl'] = proxy_callback_url if proxy_callback_url
       uri.query = hash_to_query(h)
 
diff --git a/lib/casclient/tickets.rb b/lib/casclient/tickets.rb
index 7921093c..1ecd2f01 100644
--- a/lib/casclient/tickets.rb
+++ b/lib/casclient/tickets.rb
@@ -3,36 +3,36 @@ module CASClient
   class ServiceTicket
     attr_reader :ticket, :service, :renew
     attr_accessor :user, :extra_attributes, :pgt_iou, :success, :failure_code, :failure_message
-    
+
     def initialize(ticket, service, renew = false)
       @ticket = ticket
       @service = service
       @renew = renew
     end
-    
+
     def is_valid?
       success
     end
-    
+
     def has_been_validated?
       not user.nil?
     end
   end
-  
+
   # Represents a CAS proxy ticket.
   class ProxyTicket < ServiceTicket
   end
-  
+
   class ProxyGrantingTicket
     attr_reader :ticket, :iou
-    
+
     def initialize(ticket, iou)
       @ticket = ticket
       @iou = iou
     end
-    
+
     def to_s
       ticket
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/casclient/tickets/storage/active_record_ticket_store.rb b/lib/casclient/tickets/storage/active_record_ticket_store.rb
index ec74bc6f..ca9266e0 100644
--- a/lib/casclient/tickets/storage/active_record_ticket_store.rb
+++ b/lib/casclient/tickets/storage/active_record_ticket_store.rb
@@ -1,3 +1,23 @@
+# rails4 specific
+if Gem.loaded_specs["activesupport"].version.to_s =~ /^4/
+  require 'active_record'
+  require 'active_record/session_store'
+
+  # wrapper around ActionDispatch::Session::ActiveRecordStore
+  # as ActiveRecord::SessionStore.session_class doesn't exist in rails4
+  module ActiveRecord
+    module SessionStore
+      def self.session_class
+        ActionDispatch::Session::ActiveRecordStore.session_class
+      end
+
+      def self.session_class=(klass)
+        ActionDispatch::Session::ActiveRecordStore.session_class = klass
+      end
+    end
+  end
+end
+
 module CASClient
   module Tickets
     module Storage
diff --git a/rubycas-client.gemspec b/rubycas-client.gemspec
index aa664837..633f825e 100644
--- a/rubycas-client.gemspec
+++ b/rubycas-client.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |gem|
 
   gem.add_dependency("activesupport")
   gem.add_development_dependency("rake")
-  gem.add_development_dependency("database_cleaner", "~> 0.9.1")
+  gem.add_development_dependency("database_cleaner", "~> 1.0.1")
   gem.add_development_dependency("json")
   gem.add_development_dependency("rspec")
   gem.add_development_dependency("appraisal")