diff --git a/Gemfile b/Gemfile
index 1f014f79..625c2592 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,5 +10,5 @@ gem "rubocop", "1.56.0"
 gem "rubocop-md", "1.2.0"
 gem "rubocop-minitest", "0.31.0"
 gem "rubocop-packaging", "0.5.2"
-gem "rubocop-performance", "1.18.0"
+gem "rubocop-performance", "1.19.0"
 gem "rubocop-rake", "0.6.0"
diff --git a/lib/tomo/cli/usage.rb b/lib/tomo/cli/usage.rb
index 1d31042d..c218b7ab 100644
--- a/lib/tomo/cli/usage.rb
+++ b/lib/tomo/cli/usage.rb
@@ -26,7 +26,7 @@ def to_s
       attr_reader :banner_proc, :options
 
       def options_help
-        width = options.map(&:first).map(&:length).max
+        width = options.map { |opt| opt.first.length }.max
         options.each_with_object([]) do |(spec, desc), help|
           help << "#{Colors.yellow(spec.ljust(width))}    #{desc}"
         end.join("\n")
diff --git a/lib/tomo/plugin/puma/tasks.rb b/lib/tomo/plugin/puma/tasks.rb
index c5257cf7..2e22e913 100644
--- a/lib/tomo/plugin/puma/tasks.rb
+++ b/lib/tomo/plugin/puma/tasks.rb
@@ -81,7 +81,7 @@ def linger_must_be_enabled!
 
     def setup_directories
       files = [service.path, socket.path].compact
-      dirs = files.map(&:dirname).map(&:to_s)
+      dirs = files.map { |f| f.dirname.to_s }
       remote.mkdir_p dirs.uniq
     end
 
diff --git a/lib/tomo/runtime/settings_interpolation.rb b/lib/tomo/runtime/settings_interpolation.rb
index d6928f8a..5caff850 100644
--- a/lib/tomo/runtime/settings_interpolation.rb
+++ b/lib/tomo/runtime/settings_interpolation.rb
@@ -39,7 +39,7 @@ def symbolize(hash)
       end
 
       def dump_settings(hash)
-        key_len = hash.keys.map(&:to_s).map(&:length).max
+        key_len = hash.keys.map { |k| k.to_s.length }.max
         dump = "Settings: {\n"
         hash.to_a.sort_by(&:first).each do |key, value|
           justified_key = "#{key}:".ljust(key_len + 1)
diff --git a/lib/tomo/shell_builder.rb b/lib/tomo/shell_builder.rb
index df550e7b..e64be9ee 100644
--- a/lib/tomo/shell_builder.rb
+++ b/lib/tomo/shell_builder.rb
@@ -67,7 +67,7 @@ def command_to_string(*command)
     def shell_join(*command)
       return command.first.to_s if command.length == 1
 
-      command.flatten.compact.map(&:to_s).map(&:shellescape).join(" ")
+      command.flatten.compact.map { |arg| arg.to_s.shellescape }.join(" ")
     end
 
     def cd_chdir