diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2b6fdd0..dcf3b56 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,10 +12,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - name: Set up Ruby 3.3.0
+      - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.3.0
           bundler-cache: true
       - run: bin/rubocop
       - run: bin/rspec
diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..15a2799
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+3.3.0
diff --git a/simple_cov-formatter-terminal.gemspec b/simple_cov-formatter-terminal.gemspec
index d2917a6..1ab4db4 100644
--- a/simple_cov-formatter-terminal.gemspec
+++ b/simple_cov-formatter-terminal.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |spec|
   spec.description = 'Print detailed code coverage info to the terminal'
   spec.homepage = 'https://github.com/davidrunger/simple_cov-formatter-terminal'
   spec.license = 'MIT'
-  spec.required_ruby_version = '>= 3.2.0'
+  spec.required_ruby_version = Gem::Requirement.new(">= #{File.read('.ruby-version').rstrip}")
 
   spec.metadata['homepage_uri'] = spec.homepage
   spec.metadata['source_code_uri'] = 'https://github.com/davidrunger/simple_cov-formatter-terminal'