diff --git a/lib/app_profiler/middleware.rb b/lib/app_profiler/middleware.rb
index 232ead57..8f684cdf 100644
--- a/lib/app_profiler/middleware.rb
+++ b/lib/app_profiler/middleware.rb
@@ -41,7 +41,7 @@ def profile(env, params)
         profile,
         response: response,
         autoredirect: params.autoredirect,
-        async: params.async
+        async: params.async,
       )
 
       response
diff --git a/lib/app_profiler/middleware/upload_action.rb b/lib/app_profiler/middleware/upload_action.rb
index a3364666..c2d9d0f5 100644
--- a/lib/app_profiler/middleware/upload_action.rb
+++ b/lib/app_profiler/middleware/upload_action.rb
@@ -14,7 +14,7 @@ def call(profile, response: nil, autoredirect: nil, async: false)
             append_headers(
               response,
               upload: profile_upload,
-              autoredirect: autoredirect.nil? ? AppProfiler.autoredirect : autoredirect
+              autoredirect: autoredirect.nil? ? AppProfiler.autoredirect : autoredirect,
             ) if response
           end
         end
diff --git a/lib/app_profiler/profile.rb b/lib/app_profiler/profile.rb
index 9fa323bb..e5afa6ce 100644
--- a/lib/app_profiler/profile.rb
+++ b/lib/app_profiler/profile.rb
@@ -41,7 +41,7 @@ def upload
       AppProfiler.storage.upload(self).tap do |upload|
         if upload && defined?(upload.url)
           AppProfiler.logger.info(
-            <<~INFO.squish
+            <<~INFO.squish,
               [Profiler] data uploaded:
               profile_url=#{upload.url}
               profile_viewer_url=#{AppProfiler.profile_url(upload)}
@@ -51,7 +51,7 @@ def upload
       end
     rescue => error
       AppProfiler.logger.info(
-        "[Profiler] failed to upload profile error_class=#{error.class} error_message=#{error.message}"
+        "[Profiler] failed to upload profile error_class=#{error.class} error_message=#{error.message}",
       )
       nil
     end
diff --git a/lib/app_profiler/profiler.rb b/lib/app_profiler/profiler.rb
index bbb922df..45da916c 100644
--- a/lib/app_profiler/profiler.rb
+++ b/lib/app_profiler/profiler.rb
@@ -33,7 +33,7 @@ def start(params = {})
         StackProf.start(**DEFAULTS, **params)
       rescue => error
         AppProfiler.logger.info(
-          "[Profiler] failed to start the profiler error_class=#{error.class} error_message=#{error.message}"
+          "[Profiler] failed to start the profiler error_class=#{error.class} error_message=#{error.message}",
         )
         # This is a boolean instead of nil because StackProf#start returns a
         # boolean as well.
@@ -52,7 +52,7 @@ def results
         Profile.from_stackprof(stackprof_profile)
       rescue => error
         AppProfiler.logger.info(
-          "[Profiler] failed to obtain the profile error_class=#{error.class} error_message=#{error.message}"
+          "[Profiler] failed to obtain the profile error_class=#{error.class} error_message=#{error.message}",
         )
         nil
       end
diff --git a/lib/app_profiler/server.rb b/lib/app_profiler/server.rb
index 0a34ebd1..147dc592 100644
--- a/lib/app_profiler/server.rb
+++ b/lib/app_profiler/server.rb
@@ -280,7 +280,7 @@ def initialize(transport, logger)
         @listen_thread = nil
 
         @logger.info(
-          "[AppProfiler::Server] listening on addr=#{@transport.socket.addr}"
+          "[AppProfiler::Server] listening on addr=#{@transport.socket.addr}",
         )
         @pid = Process.pid
       end
@@ -342,7 +342,7 @@ def serve
                 end
               rescue => e
                 @logger.error(
-                  "[AppProfiler::Server] exception #{e} responding to request #{request}: #{e.message}"
+                  "[AppProfiler::Server] exception #{e} responding to request #{request}: #{e.message}",
                 )
               ensure
                 session.close
diff --git a/lib/app_profiler/viewer/speedscope_remote_viewer/base_middleware.rb b/lib/app_profiler/viewer/speedscope_remote_viewer/base_middleware.rb
index 8d8397df..c45ef1bc 100644
--- a/lib/app_profiler/viewer/speedscope_remote_viewer/base_middleware.rb
+++ b/lib/app_profiler/viewer/speedscope_remote_viewer/base_middleware.rb
@@ -125,7 +125,7 @@ def index(_env)
                   </p>
                 HTML
               end
-            end
+            end,
           )
         end
 
diff --git a/lib/app_profiler/viewer/speedscope_remote_viewer/middleware.rb b/lib/app_profiler/viewer/speedscope_remote_viewer/middleware.rb
index 516f83b9..75fb4227 100644
--- a/lib/app_profiler/viewer/speedscope_remote_viewer/middleware.rb
+++ b/lib/app_profiler/viewer/speedscope_remote_viewer/middleware.rb
@@ -12,7 +12,7 @@ class Middleware < BaseMiddleware
         def initialize(app)
           super
           @speedscope = Rack::File.new(
-            File.join(AppProfiler.root, "node_modules/speedscope/dist/release")
+            File.join(AppProfiler.root, "node_modules/speedscope/dist/release"),
           )
         end
 
@@ -33,7 +33,7 @@ def show(_env, name)
           end || raise(ArgumentError)
 
           render(
-            <<~HTML
+            <<~HTML,
               <script type="text/javascript">
                 var graph = #{profile.read};
                 var json = JSON.stringify(graph);
diff --git a/lib/app_profiler/yarn/command.rb b/lib/app_profiler/yarn/command.rb
index 3866325a..8fe4d1b6 100644
--- a/lib/app_profiler/yarn/command.rb
+++ b/lib/app_profiler/yarn/command.rb
@@ -49,7 +49,7 @@ def ensure_yarn_installed
         exec("which", "yarn", silent: true) do
           raise(
             YarnError,
-            <<~MSG.squish
+            <<~MSG.squish,
               `yarn` command not found.
               Please install `yarn` or make it available in PATH.
             MSG
diff --git a/test/app_profiler/middleware_test.rb b/test/app_profiler/middleware_test.rb
index c5a80301..108c9dcf 100644
--- a/test/app_profiler/middleware_test.rb
+++ b/test/app_profiler/middleware_test.rb
@@ -113,14 +113,14 @@ class MiddlewareTest < TestCase
         middleware = AppProfiler::Middleware.new(app_env)
         middleware.call(
           mock_request_env(
-            path: <<~PATH.delete("\n")
+            path: <<~PATH.delete("\n"),
               /?profile=cpu&contact%5Bemail%5D]%F0%9D%92%B6]%F0%9D%92%B6]%22]
               %22]%22]%22]%22]%22]%22]%22]%22]%22]%22]%22]%22]]%22]%22]%22]%22]%22]%22]%22]%22]%22]%22]%22]%22]]%22]
               %22]%22]%22]%22]%22]%22]%22]%22]%22]%22]%22]]%22]%22]%22]%22]%22]%22]%22]%22]%22]%22]%22]%22]]%22]%22]
               %22]%22]%22]%22%22]%22]%22]%22]%22]]%22]%22]%22]%22]%22]%22]%22]]%22]%22]%22]%22]%22]%22]%22]%22]%22]
               %22]]%22]%22%22]%22]%22]%22]%22]%22]%22]%22]%22]%22]]%22]%22]%22]%22]%22]%22]%22%22]%22]%22]%22]
             PATH
-          )
+          ),
         )
       end
     end
diff --git a/test/app_profiler/request_parameters_test.rb b/test/app_profiler/request_parameters_test.rb
index 544dc2f2..77a858ba 100644
--- a/test/app_profiler/request_parameters_test.rb
+++ b/test/app_profiler/request_parameters_test.rb
@@ -58,7 +58,7 @@ class RequestParametersTest < TestCase
 
         assert_equal(
           { mode: mode.to_sym, interval: interval.to_i, ignore_gc: true, metadata: { id: "123", context: "test" } },
-          params.to_h
+          params.to_h,
         )
         assert_predicate(params, :valid?)
       end
@@ -72,7 +72,7 @@ def request_params(headers: {})
 
     def mock_request(headers, path: "/")
       Rack::Request.new(
-        Rack::MockRequest.env_for("https://example.com#{path}", headers)
+        Rack::MockRequest.env_for("https://example.com#{path}", headers),
       )
     end
   end
diff --git a/test/app_profiler/storage/google_cloud_storage_test.rb b/test/app_profiler/storage/google_cloud_storage_test.rb
index 544252fc..d4581966 100644
--- a/test/app_profiler/storage/google_cloud_storage_test.rb
+++ b/test/app_profiler/storage/google_cloud_storage_test.rb
@@ -35,7 +35,7 @@ def teardown
       test "directory includes context" do
         assert_equal(
           GoogleCloudStorage.send(:gcs_filename, stub(context: "context", file: Pathname.new("foo"))),
-          "context/foo"
+          "context/foo",
         )
       end
 
diff --git a/test/app_profiler/viewer/speedscope_remote_viewer/middleware_test.rb b/test/app_profiler/viewer/speedscope_remote_viewer/middleware_test.rb
index 4495f69d..ad5f7dc0 100644
--- a/test/app_profiler/viewer/speedscope_remote_viewer/middleware_test.rb
+++ b/test/app_profiler/viewer/speedscope_remote_viewer/middleware_test.rb
@@ -8,7 +8,7 @@ class SpeedscopeRemoteViewer
       class MiddlewareTest < TestCase
         setup do
           @app = Middleware.new(
-            proc { [200, { "Content-Type" => "text/plain" }, ["Hello world!"]] }
+            proc { [200, { "Content-Type" => "text/plain" }, ["Hello world!"]] },
           )
         end
 
@@ -71,7 +71,7 @@ class MiddlewareTest < TestCase
           assert_match(
             %r{'Flamegraph for .*'\);\n</script>},
             html[-200..-1],
-            message: "The generated HTML was incomplete"
+            message: "The generated HTML was incomplete",
           )
         end
 
diff --git a/test/app_profiler/viewer/speedscope_remote_viewer_test.rb b/test/app_profiler/viewer/speedscope_remote_viewer_test.rb
index 5b2cd71e..8d5d8ecf 100644
--- a/test/app_profiler/viewer/speedscope_remote_viewer_test.rb
+++ b/test/app_profiler/viewer/speedscope_remote_viewer_test.rb
@@ -19,7 +19,7 @@ class SpeedscopeRemoteViewerTest < TestCase
         id = SpeedscopeRemoteViewer::Middleware.id(profile.file)
 
         AppProfiler.logger.expects(:info).with(
-          "[Profiler] Profile available at /app_profiler/#{id}\n"
+          "[Profiler] Profile available at /app_profiler/#{id}\n",
         )
 
         viewer.view