diff --git a/rack-protection/spec/lib/rack/protection/authenticity_token_spec.rb b/rack-protection/spec/lib/rack/protection/authenticity_token_spec.rb
index c14b8851..433e6ea5 100644
--- a/rack-protection/spec/lib/rack/protection/authenticity_token_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/authenticity_token_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::AuthenticityToken do
+RSpec.describe Rack::Protection::AuthenticityToken do
   let(:token) { described_class.random_token }
   let(:masked_token) { described_class.token(session) }
   let(:bad_token) { Base64.strict_encode64("badtoken") }
diff --git a/rack-protection/spec/lib/rack/protection/base_spec.rb b/rack-protection/spec/lib/rack/protection/base_spec.rb
index 72778642..46a4d901 100644
--- a/rack-protection/spec/lib/rack/protection/base_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/base_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::Base do
+RSpec.describe Rack::Protection::Base do
 
   subject { described_class.new(lambda {}) }
 
diff --git a/rack-protection/spec/lib/rack/protection/content_security_policy_spec.rb b/rack-protection/spec/lib/rack/protection/content_security_policy_spec.rb
index 547bb4a7..0df46ba8 100644
--- a/rack-protection/spec/lib/rack/protection/content_security_policy_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/content_security_policy_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::ContentSecurityPolicy do
+RSpec.describe Rack::Protection::ContentSecurityPolicy do
   it_behaves_like "any rack application"
 
   it 'should set the Content Security Policy' do
diff --git a/rack-protection/spec/lib/rack/protection/cookie_tossing_spec.rb b/rack-protection/spec/lib/rack/protection/cookie_tossing_spec.rb
index f973bd47..af6d8882 100644
--- a/rack-protection/spec/lib/rack/protection/cookie_tossing_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/cookie_tossing_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::CookieTossing do
+RSpec.describe Rack::Protection::CookieTossing do
   it_behaves_like "any rack application"
 
   context 'with default reaction' do
diff --git a/rack-protection/spec/lib/rack/protection/escaped_params_spec.rb b/rack-protection/spec/lib/rack/protection/escaped_params_spec.rb
index 4134dc6e..01c4f3a6 100644
--- a/rack-protection/spec/lib/rack/protection/escaped_params_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/escaped_params_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::EscapedParams do
+RSpec.describe Rack::Protection::EscapedParams do
   it_behaves_like "any rack application"
 
   context 'escaping' do
diff --git a/rack-protection/spec/lib/rack/protection/form_token_spec.rb b/rack-protection/spec/lib/rack/protection/form_token_spec.rb
index e799ed8e..b9a340da 100644
--- a/rack-protection/spec/lib/rack/protection/form_token_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/form_token_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::FormToken do
+RSpec.describe Rack::Protection::FormToken do
   let(:token) { described_class.random_token }
   let(:masked_token) { described_class.token(session) }
   let(:bad_token) { Base64.strict_encode64("badtoken") }
diff --git a/rack-protection/spec/lib/rack/protection/frame_options_spec.rb b/rack-protection/spec/lib/rack/protection/frame_options_spec.rb
index 1be4335e..367bf364 100644
--- a/rack-protection/spec/lib/rack/protection/frame_options_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/frame_options_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::FrameOptions do
+RSpec.describe Rack::Protection::FrameOptions do
   it_behaves_like "any rack application"
 
   it 'should set the X-Frame-Options' do
diff --git a/rack-protection/spec/lib/rack/protection/http_origin_spec.rb b/rack-protection/spec/lib/rack/protection/http_origin_spec.rb
index a6b0239e..fd6bbedf 100644
--- a/rack-protection/spec/lib/rack/protection/http_origin_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/http_origin_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::HttpOrigin do
+RSpec.describe Rack::Protection::HttpOrigin do
   it_behaves_like "any rack application"
 
   before(:each) do
diff --git a/rack-protection/spec/lib/rack/protection/ip_spoofing_spec.rb b/rack-protection/spec/lib/rack/protection/ip_spoofing_spec.rb
index a75aae52..b3a91094 100644
--- a/rack-protection/spec/lib/rack/protection/ip_spoofing_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/ip_spoofing_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::IPSpoofing do
+RSpec.describe Rack::Protection::IPSpoofing do
   it_behaves_like "any rack application"
 
   it 'accepts requests without X-Forward-For header' do
diff --git a/rack-protection/spec/lib/rack/protection/json_csrf_spec.rb b/rack-protection/spec/lib/rack/protection/json_csrf_spec.rb
index 77ff258b..fb45b840 100644
--- a/rack-protection/spec/lib/rack/protection/json_csrf_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/json_csrf_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::JsonCsrf do
+RSpec.describe Rack::Protection::JsonCsrf do
   it_behaves_like "any rack application"
 
   module DummyAppWithBody
diff --git a/rack-protection/spec/lib/rack/protection/path_traversal_spec.rb b/rack-protection/spec/lib/rack/protection/path_traversal_spec.rb
index 0e191cf2..fba876d9 100644
--- a/rack-protection/spec/lib/rack/protection/path_traversal_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/path_traversal_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::PathTraversal do
+RSpec.describe Rack::Protection::PathTraversal do
   it_behaves_like "any rack application"
 
   context 'escaping' do
diff --git a/rack-protection/spec/lib/rack/protection/protection_spec.rb b/rack-protection/spec/lib/rack/protection/protection_spec.rb
index 815fab8e..9bdb34e0 100644
--- a/rack-protection/spec/lib/rack/protection/protection_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/protection_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection do
+RSpec.describe Rack::Protection do
   it_behaves_like "any rack application"
 
   it 'passes on options' do
diff --git a/rack-protection/spec/lib/rack/protection/remote_referrer_spec.rb b/rack-protection/spec/lib/rack/protection/remote_referrer_spec.rb
index e67d0813..35512b9d 100644
--- a/rack-protection/spec/lib/rack/protection/remote_referrer_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/remote_referrer_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::RemoteReferrer do
+RSpec.describe Rack::Protection::RemoteReferrer do
   it_behaves_like "any rack application"
 
   it "accepts post requests with no referrer" do
diff --git a/rack-protection/spec/lib/rack/protection/remote_token_spec.rb b/rack-protection/spec/lib/rack/protection/remote_token_spec.rb
index 9ef4a03b..bc04f1ad 100644
--- a/rack-protection/spec/lib/rack/protection/remote_token_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/remote_token_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::RemoteToken do
+RSpec.describe Rack::Protection::RemoteToken do
   let(:token) { described_class.random_token }
   let(:masked_token) { described_class.token(session) }
   let(:bad_token) { Base64.strict_encode64("badtoken") }
diff --git a/rack-protection/spec/lib/rack/protection/session_hijacking_spec.rb b/rack-protection/spec/lib/rack/protection/session_hijacking_spec.rb
index 11d655c5..0a96c230 100644
--- a/rack-protection/spec/lib/rack/protection/session_hijacking_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/session_hijacking_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::SessionHijacking do
+RSpec.describe Rack::Protection::SessionHijacking do
   it_behaves_like "any rack application"
 
   it "accepts a session without changes to tracked parameters" do
diff --git a/rack-protection/spec/lib/rack/protection/strict_transport_spec.rb b/rack-protection/spec/lib/rack/protection/strict_transport_spec.rb
index cd1262a0..21cba97a 100644
--- a/rack-protection/spec/lib/rack/protection/strict_transport_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/strict_transport_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::StrictTransport do
+RSpec.describe Rack::Protection::StrictTransport do
   it_behaves_like "any rack application"
 
   it 'should set the Strict-Transport-Security header' do
diff --git a/rack-protection/spec/lib/rack/protection/xss_header_spec.rb b/rack-protection/spec/lib/rack/protection/xss_header_spec.rb
index 37a7af31..1b5d3c03 100644
--- a/rack-protection/spec/lib/rack/protection/xss_header_spec.rb
+++ b/rack-protection/spec/lib/rack/protection/xss_header_spec.rb
@@ -1,4 +1,4 @@
-describe Rack::Protection::XSSHeader do
+RSpec.describe Rack::Protection::XSSHeader do
   it_behaves_like "any rack application"
 
   it 'should set the X-XSS-Protection' do
diff --git a/rack-protection/spec/spec_helper.rb b/rack-protection/spec/spec_helper.rb
index 8928f787..745c2f9f 100644
--- a/rack-protection/spec/spec_helper.rb
+++ b/rack-protection/spec/spec_helper.rb
@@ -21,8 +21,9 @@ Dir[File.expand_path('support/**/*.rb', __dir__)].each { |f| require f }
 #
 # See http://rubydoc.info/gems/rspec-core/RSpec/Core/Configuration
 RSpec.configure do |config|
-# The settings below are suggested to provide a good initial experience
-# with RSpec, but feel free to customize to your heart's content.
+  # The settings below are suggested to provide a good initial experience
+  # with RSpec, but feel free to customize to your heart's content.
+  config.disable_monkey_patching!
 
   # These two settings work together to allow you to limit a spec run
   # to individual examples or groups you care about by tagging them with
diff --git a/rack-protection/spec/support/shared_examples.rb b/rack-protection/spec/support/shared_examples.rb
index ddf68ff5..6e56cdb8 100644
--- a/rack-protection/spec/support/shared_examples.rb
+++ b/rack-protection/spec/support/shared_examples.rb
@@ -1,4 +1,4 @@
-shared_examples_for 'any rack application' do
+RSpec.shared_examples_for 'any rack application' do
   it "should not interfere with normal get requests" do
     expect(get('/')).to be_ok
     expect(body).to eq('ok')