diff --git a/spec/posthog/send_worker_spec.rb b/spec/posthog/send_worker_spec.rb
index 77d8e64..353b323 100644
--- a/spec/posthog/send_worker_spec.rb
+++ b/spec/posthog/send_worker_spec.rb
@@ -23,15 +23,15 @@ class PostHog
       end
 
       after :all do
+        PostHog::Defaults::Request.send(:remove_const, :BACKOFF)
         PostHog::Defaults::Request::BACKOFF = 30.0
       end
 
       it 'does not error if the request fails' do
         expect do
-          PostHog::Transport
-            .any_instance
-            .stub(:send)
-            .and_return(PostHog::Response.new(-1, 'Unknown error'))
+          allow_any_instance_of(PostHog::Transport).to(
+            receive(:send).and_return(PostHog::Response.new(-1, 'Unknown error'))
+          )
 
           queue = Queue.new
           queue << {}
@@ -39,16 +39,13 @@ class PostHog
           worker.run
 
           expect(queue).to be_empty
-
-          PostHog::Transport.any_instance.unstub(:send)
         end.to_not raise_error
       end
 
       it 'executes the error handler if the request is invalid' do
-        PostHog::Transport
-          .any_instance
-          .stub(:send)
-          .and_return(PostHog::Response.new(400, 'Some error'))
+        allow_any_instance_of(PostHog::Transport).to(
+          receive(:send).and_return(PostHog::Response.new(400, 'Some error'))
+        )
 
         status = error = nil
         on_error =
@@ -67,8 +64,6 @@ class PostHog
         sleep 0.1 # First give thread time to spin-up.
         sleep 0.01 while worker.is_requesting?
 
-        PostHog::Transport.any_instance.unstub(:send)
-
         expect(queue).to be_empty
         expect(status).to eq(400)
         expect(error).to eq('Some error')
@@ -118,12 +113,10 @@ def bad_obj.to_json(*_args)
       end
 
       it 'returns true if there is a current batch' do
-        PostHog::Transport
-          .any_instance
-          .stub(:send) do
-            sleep(0.2)
-            PostHog::Response.new(200, 'Success')
-          end
+        allow_any_instance_of(PostHog::Transport).to receive(:send) do
+          sleep(0.2)
+          PostHog::Response.new(200, 'Success')
+        end
 
         queue = Queue.new
         queue << Requested::CAPTURE
@@ -134,8 +127,6 @@ def bad_obj.to_json(*_args)
 
         worker_thread.join
         expect(worker.is_requesting?).to eq(false)
-
-        PostHog::Transport.any_instance.unstub(:send)
       end
     end
   end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index cacce92..791899b 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -10,6 +10,12 @@
 require 'active_support/all'
 require 'webmock/rspec'
 
+RSpec.configure do |config|
+  config.before(:each) do
+    PostHog::Logging.logger = Logger.new('/dev/null') # Suppress all logging
+  end
+end
+
 # Setting timezone for ActiveSupport::TimeWithZone to UTC
 Time.zone = 'UTC'