diff --git a/spec/access_control_spec.rb b/spec/access_control_spec.rb
index 6fb8cf0..8ef14ce 100644
--- a/spec/access_control_spec.rb
+++ b/spec/access_control_spec.rb
@@ -40,7 +40,7 @@ module Allowy
       end
 
       it "should not raise error" do
-        expect { subject.authorize! :read, 'allow' }.not_to raise_error AccessDenied
+        expect { subject.authorize! :read, 'allow' }.not_to raise_error
       end
     end
 
diff --git a/spec/context_spec.rb b/spec/context_spec.rb
index 9d68f6f..9a75304 100644
--- a/spec/context_spec.rb
+++ b/spec/context_spec.rb
@@ -8,7 +8,7 @@ class SampleContext
   describe Context do
 
     subject { SampleContext.new }
-    let(:access) { stub }
+    let(:access) { double("Access") }
 
     it "should create a registry" do
       Registry.should_receive(:new).with(subject)
diff --git a/spec/rspec_spec.rb b/spec/rspec_spec.rb
index e178427..93130ac 100644
--- a/spec/rspec_spec.rb
+++ b/spec/rspec_spec.rb
@@ -4,7 +4,7 @@
 module Allowy
   describe ControllerAuthorizationMacros do
     include ControllerAuthorizationMacros
-    before { @controller = stub("FakeController") }
+    before { @controller = double("FakeController") }
 
     ignore_authorization!