diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c9067cf5..e2b04a2b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: [ '2.7', '3.0', '3.1' ]
+        ruby: [ '3.3' ]
     name: Validate JSON on Ruby ${{ matrix.ruby }}
     steps:
       - uses: actions/checkout@v2
diff --git a/fauxhai-chef.gemspec b/fauxhai-chef.gemspec
index fabcab01..0c4c7554 100644
--- a/fauxhai-chef.gemspec
+++ b/fauxhai-chef.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |spec|
   spec.homepage      = "https://github.com/chef/fauxhai"
   spec.license       = "MIT"
 
-  spec.required_ruby_version = ">= 2.7"
+  spec.required_ruby_version = ">= 3.3"
 
   spec.files         = %w{LICENSE Gemfile fauxhai-chef.gemspec} + Dir.glob("{lib,bin}/**/*", File::FNM_DOTMATCH).reject { |f| File.directory?(f) }
   spec.executables   = "fauxhai"
@@ -20,8 +20,8 @@ Gem::Specification.new do |spec|
 
   spec.add_runtime_dependency "net-ssh"
 
-  spec.add_development_dependency "chef", ">= 13.0"
-  spec.add_development_dependency "ohai", ">= 13.0"
+  spec.add_development_dependency "chef", "~> 18.0"
+  spec.add_development_dependency "ohai", "~> 18.0"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rspec", "~> 3.7"
   spec.add_development_dependency "rspec-its", "~> 1.2"