diff --git a/.github/workflows/actionlint.yml b/.github/workflows/actionlint.yml
index 4012eec7..14648582 100644
--- a/.github/workflows/actionlint.yml
+++ b/.github/workflows/actionlint.yml
@@ -64,7 +64,7 @@ jobs:
     # This is only available on public repositories.
     if: >
       always() &&
-      !contains(fromJSON('[["cancelled", "skipped"]]'), needs.workflow_syntax.result) &&
+      !contains(fromJSON('["cancelled", "skipped"]'), needs.workflow_syntax.result) &&
       !github.event.repository.private
     runs-on: ubuntu-latest
     permissions:
diff --git a/.ruby-version b/.ruby-version
index fa7adc7a..9c25013d 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.5
+3.3.6
diff --git a/Gemfile.lock b/Gemfile.lock
index c5cd6009..a929bf9b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -55,7 +55,7 @@ DEPENDENCIES
   sorbet-runtime
 
 RUBY VERSION
-   ruby 3.3.5p100
+   ruby 3.3.6p108
 
 BUNDLED WITH
    2.5.20
diff --git a/spec/homebrew/step_spec.rb b/spec/homebrew/step_spec.rb
index 28b4a340..7a92ae06 100644
--- a/spec/homebrew/step_spec.rb
+++ b/spec/homebrew/step_spec.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require "ostruct"
 require "spec_helper"
 
 describe Homebrew::Step do
diff --git a/spec/homebrew/tests/setup_spec.rb b/spec/homebrew/tests/setup_spec.rb
index 0989b450..6686b3f6 100644
--- a/spec/homebrew/tests/setup_spec.rb
+++ b/spec/homebrew/tests/setup_spec.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require "ostruct"
 require "spec_helper"
 
 describe Homebrew::Tests::Setup do
diff --git a/spec/stub/system_command.rb b/spec/stub/system_command.rb
index cdc78162..01fab29a 100644
--- a/spec/stub/system_command.rb
+++ b/spec/stub/system_command.rb
@@ -1,5 +1,7 @@
 # frozen_string_literal: true
 
+require "ostruct"
+
 class SystemCommand
   module Mixin
     def system_command(*)
diff --git a/spec/stub/tap.rb b/spec/stub/tap.rb
index ea6dd6c1..94e26c96 100644
--- a/spec/stub/tap.rb
+++ b/spec/stub/tap.rb
@@ -1,5 +1,7 @@
 # frozen_string_literal: true
 
+require "ostruct"
+
 class Tap
   def self.fetch(*)
     OpenStruct.new(name: "Homebrew/homebrew-core")