diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 2bd59d4af..a89c174c2 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ '3.2', '3.3', '3.4' ]
+        ruby: [ '3.2', '3.3', '3.4', '4.0' ]
         gemfile: [rails.7.2.activerecord, rails.8.0.activerecord, rails.8.1.activerecord]
     name: ${{ matrix.ruby }}-${{ matrix.gemfile }}
 
diff --git a/chewy.gemspec b/chewy.gemspec
index fd6bdf284..57aba4036 100644
--- a/chewy.gemspec
+++ b/chewy.gemspec
@@ -11,7 +11,7 @@ Gem::Specification.new do |spec|
   spec.description   = 'Chewy provides functionality for Elasticsearch index handling, documents import mappings and chainable query DSL'
   spec.homepage      = 'https://github.com/toptal/chewy'
   spec.license       = 'MIT'
-  spec.required_ruby_version = '~> 3.2'
+  spec.required_ruby_version = '>= 3.2'
 
   spec.files         = Dir['CHANGELOG.md', 'LICENSE.txt', 'README.md', 'lib/**/*']
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }