diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c09d5be..bc85b5c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,7 +32,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         # The use of the quoted string is due to https://github.com/actions/runner/issues/849
-        ruby: ['head', '3.2', '3.1']
+        ruby: ['head', '3.3', '3.2']
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
diff --git a/.rubocop.yml b/.rubocop.yml
index 7659381..fe15d2b 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -4,7 +4,7 @@ require:
   - rubocop-thread_safety
 
 AllCops:
-  TargetRubyVersion: 3.1
+  TargetRubyVersion: 3.2
   DisplayCopNames: true
   Exclude:
     - '**/vendor/**/*'
diff --git a/my_new_library.gemspec b/my_new_library.gemspec
index 127f24c..0efe786 100644
--- a/my_new_library.gemspec
+++ b/my_new_library.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |gem|
     'rubygems_mfa_required' => 'true'
   }
 
-  gem.required_ruby_version = Gem::Requirement.new('>= 3.1')
+  gem.required_ruby_version = Gem::Requirement.new('>= 3.2')
 
   # common