diff --git a/Library/Homebrew/bundle/commands/cleanup.rb b/Library/Homebrew/bundle/commands/cleanup.rb
index 9eb6847f44..2715fed00b 100644
--- a/Library/Homebrew/bundle/commands/cleanup.rb
+++ b/Library/Homebrew/bundle/commands/cleanup.rb
@@ -183,7 +183,7 @@ module Homebrew
           require "bundle/tap_dumper"
 
           @dsl ||= Brewfile.read(global:, file:)
-          kept_formulae = self.kept_formulae(global:, file:).filter_map(&method(:lookup_formula))
+          kept_formulae = self.kept_formulae(global:, file:).filter_map { lookup_formula(_1) }
           kept_taps = @dsl.entries.select { |e| e.type == :tap }.map(&:name)
           kept_taps += kept_formulae.filter_map(&:tap).map(&:name)
           current_taps = Homebrew::Bundle::TapDumper.tap_names
diff --git a/Library/Homebrew/cask_dependent.rb b/Library/Homebrew/cask_dependent.rb
index 01bd0a7f19..815bc9050b 100644
--- a/Library/Homebrew/cask_dependent.rb
+++ b/Library/Homebrew/cask_dependent.rb
@@ -45,7 +45,7 @@ class CaskDependent
     )
   end
 
-  sig { returns(T::Array[CaskDependent::Requirement]) }
+  sig { returns(T::Array[::Requirement]) }
   def requirements
     @requirements ||= T.let(
       begin
@@ -73,7 +73,7 @@ class CaskDependent
 
         requirements
       end,
-      T.nilable(T::Array[CaskDependent::Requirement]),
+      T.nilable(T::Array[::Requirement]),
     )
   end
 
diff --git a/Library/Homebrew/test/dev-cmd/bottle_spec.rb b/Library/Homebrew/test/dev-cmd/bottle_spec.rb
index b715f3c4d6..5b76df2bc2 100644
--- a/Library/Homebrew/test/dev-cmd/bottle_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/bottle_spec.rb
@@ -430,7 +430,7 @@ RSpec.describe Homebrew::DevCmd::Bottle do
         old_spec = BottleSpecification.new
         old_spec.root_url("https://failbrew.bintray.com/bottles")
         new_hash = { "root_url" => "https://testbrew.bintray.com/bottles" }
-        expect(homebrew.merge_bottle_spec(["root_url"], old_spec, new_hash)).to eq [
+        expect(homebrew.merge_bottle_spec([:root_url], old_spec, new_hash)).to eq [
           ['root_url: old: "https://failbrew.bintray.com/bottles", new: "https://testbrew.bintray.com/bottles"'],
           [],
         ]
diff --git a/Library/Homebrew/test/download_strategies/curl_spec.rb b/Library/Homebrew/test/download_strategies/curl_spec.rb
index 623f6573a8..20d0e328bd 100644
--- a/Library/Homebrew/test/download_strategies/curl_spec.rb
+++ b/Library/Homebrew/test/download_strategies/curl_spec.rb
@@ -73,10 +73,7 @@ RSpec.describe CurlDownloadStrategy do
         expect(strategy).to receive(:system_command)
           .with(
             /curl/,
-            hash_including(args: array_including_cons(
-              "--user-agent",
-              a_string_matching(/Mozilla.*Mac OS X 10_15_7.*AppleWebKit/),
-            )),
+            hash_including(args: array_including_cons("--user-agent", "fake")),
           )
           .at_least(:once)
           .and_return(instance_double(SystemCommand::Result, success?: true, stdout: "", assert_success!: nil))
@@ -173,7 +170,7 @@ RSpec.describe CurlDownloadStrategy do
               hash_including(args: array_including_cons("#{artifact_domain}/#{resource_path}")),
             )
             .at_least(:once)
-            .and_return(SystemCommand::Result.new(["curl"], [""], status, secrets: []))
+            .and_return(SystemCommand::Result.new(["curl"], [[:stdout, ""]], status, secrets: []))
 
           strategy.fetch
         end