diff --git a/Rakefile b/Rakefile
index 6f2ec02..0f2d417 100644
--- a/Rakefile
+++ b/Rakefile
@@ -5,7 +5,8 @@ $LOAD_PATH.unshift File.expand_path("../lib", __FILE__)
 require 'couchrest_model'
 
 begin
-  require 'spec/rake/spectask'
+  require 'rspec'
+  require 'rspec/core/rake_task'
 rescue LoadError
   puts <<-EOS
 To use rspec for testing you must install rspec gem:
@@ -28,8 +29,8 @@ begin
     gemspec.has_rdoc = true
     gemspec.add_dependency("couchrest", ">= 1.0.0")
     gemspec.add_dependency("mime-types", ">= 1.15")
-    gemspec.add_dependency("activesupport", ">= 2.3.5")
-    gemspec.add_dependency("activemodel", ">= 3.0.0.beta4")
+    gemspec.add_dependency("activesupport", ">= 3.0.0.rc")
+    gemspec.add_dependency("activemodel", ">= 3.0.0.rc")
     gemspec.add_dependency("tzinfo", ">= 0.3.22")
     gemspec.add_development_dependency('rspec', '>= 2.0.0.beta.19')
     gemspec.version = CouchRest::Model::VERSION
@@ -41,15 +42,15 @@ rescue LoadError
 end
 
 desc "Run all specs"
-Spec::Rake::SpecTask.new('spec') do |t|
-	t.spec_opts = ["--color"]
-	t.spec_files = FileList['spec/**/*_spec.rb']
+Rspec::Core::RakeTask.new(:spec) do |spec|
+	spec.spec_opts = ["--color"]
+	spec.pattern = 'spec/**/*_spec.rb'
 end
 
 desc "Print specdocs"
-Spec::Rake::SpecTask.new(:doc) do |t|
-	t.spec_opts = ["--format", "specdoc"]
-	t.spec_files = FileList['spec/*_spec.rb']
+Rspec::Core::RakeTask.new(:doc) do |spec|
+	spec.spec_opts = ["--format", "specdoc"]
+	spec.pattern = 'spec/*_spec.rb'
 end
 
 desc "Generate the rdoc"
diff --git a/lib/couchrest/model/design_doc.rb b/lib/couchrest/model/design_doc.rb
index 8cdc8a7..244fba0 100644
--- a/lib/couchrest/model/design_doc.rb
+++ b/lib/couchrest/model/design_doc.rb
@@ -2,10 +2,7 @@
 module CouchRest
   module Model
     module DesignDoc
-      
-      def self.included(base)
-        base.extend(ClassMethods)
-      end
+      extend ActiveSupport::Concern
       
       module ClassMethods
         
diff --git a/lib/couchrest_model.rb b/lib/couchrest_model.rb
index a2c2fd3..c19c38c 100644
--- a/lib/couchrest_model.rb
+++ b/lib/couchrest_model.rb
@@ -1,13 +1,13 @@
-gem 'couchrest', ">= 1.0.0.beta"
+gem 'couchrest', ">= 1.0.0"
 require 'couchrest'
 
 gem "tzinfo", ">= 0.3.22"
 
-gem "activesupport", ">= 2.3.5"
+gem "activesupport", ">= 3.0.0.rc"
 require 'active_support/core_ext'
 require 'active_support/json'
 
-gem "activemodel", ">= 3.0.0.beta4"
+gem "activemodel", ">= 3.0.0.rc"
 require 'active_model'
 require "active_model/callbacks"
 require "active_model/conversion"
diff --git a/spec/couchrest/base_spec.rb b/spec/couchrest/base_spec.rb
index 1cfcd80..cd5fd4d 100644
--- a/spec/couchrest/base_spec.rb
+++ b/spec/couchrest/base_spec.rb
@@ -210,7 +210,7 @@ describe "Model Base" do
   
   describe "a doc with template values (CR::Model spec)" do
     before(:all) do
-      WithTemplateAndUniqueID.all.map{|o| o.destroy(true)}
+      WithTemplateAndUniqueID.all.map{|o| o.destroy}
       WithTemplateAndUniqueID.database.bulk_delete
       @tmpl = WithTemplateAndUniqueID.new
       @tmpl2 = WithTemplateAndUniqueID.new(:preset => 'not_value', 'important-field' => '1')
@@ -233,7 +233,7 @@ describe "Model Base" do
   describe "finding all instances of a model" do
     before(:all) do
       WithTemplateAndUniqueID.req_design_doc_refresh
-      WithTemplateAndUniqueID.all.map{|o| o.destroy(true)}
+      WithTemplateAndUniqueID.all.map{|o| o.destroy}
       WithTemplateAndUniqueID.database.bulk_delete
       WithTemplateAndUniqueID.new('important-field' => '1').save
       WithTemplateAndUniqueID.new('important-field' => '2').save