diff --git a/config/environments/development.rb b/config/environments/development.rb
index 6034aa1..1a8bcd9 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -18,7 +18,7 @@
   # Enable/disable Action Controller caching. By default Action Controller caching is disabled.
   # Run rails dev:cache to toggle Action Controller caching.
   if Rails.root.join("tmp/caching-dev.txt").exist?
-    config.public_file_server.headers = { "cache-control" => "public, max-age=#{2.days.to_i}" }
+    config.public_file_server.headers = {"cache-control" => "public, max-age=#{2.days.to_i}"}
   else
     config.action_controller.perform_caching = false
   end
@@ -33,7 +33,7 @@
   config.action_mailer.perform_caching = false
 
   # Set localhost to be used by links generated in mailer templates.
-  config.action_mailer.default_url_options = { host: "localhost", port: 3000 }
+  config.action_mailer.default_url_options = {host: "localhost", port: 3000}
 
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
diff --git a/config/environments/production.rb b/config/environments/production.rb
index a50e227..19fcee2 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -13,7 +13,7 @@
   config.consider_all_requests_local = false
 
   # Cache assets for far-future expiry since they are all digest stamped.
-  config.public_file_server.headers = { "cache-control" => "public, max-age=#{1.year.to_i}" }
+  config.public_file_server.headers = {"cache-control" => "public, max-age=#{1.year.to_i}"}
 
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
   # config.asset_host = "http://assets.example.com"
@@ -28,8 +28,8 @@
   # config.ssl_options = { redirect: { exclude: ->(request) { request.path == "/up" } } }
 
   # Log to STDOUT with the current request id as a default log tag.
-  config.log_tags = [ :request_id ]
-  config.logger   = ActiveSupport::TaggedLogging.logger(STDOUT)
+  config.log_tags = [:request_id]
+  config.logger = ActiveSupport::TaggedLogging.logger($stdout)
 
   # Change to "debug" to log everything (including potentially personally-identifiable information!)
   config.log_level = ENV.fetch("RAILS_LOG_LEVEL", "info")
@@ -51,7 +51,7 @@
   # config.action_mailer.raise_delivery_errors = false
 
   # Set host to be used by links generated in mailer templates.
-  config.action_mailer.default_url_options = { host: "example.com" }
+  config.action_mailer.default_url_options = {host: "example.com"}
 
   # Specify outgoing SMTP server. Remember to add smtp/* credentials via rails credentials:edit.
   # config.action_mailer.smtp_settings = {
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 0424d0f..306866b 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -16,7 +16,7 @@
   config.eager_load = ENV["CI"].present?
 
   # Configure public file server for tests with cache-control for performance.
-  config.public_file_server.headers = { "cache-control" => "public, max-age=3600" }
+  config.public_file_server.headers = {"cache-control" => "public, max-age=3600"}
 
   # Show full error reports.
   config.consider_all_requests_local = true
@@ -34,7 +34,7 @@
   config.action_mailer.delivery_method = :test
 
   # Set host to be used by links generated in mailer templates.
-  config.action_mailer.default_url_options = { host: "example.com" }
+  config.action_mailer.default_url_options = {host: "example.com"}
 
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr