diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4ae6c2a..b4c7ed6 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        ruby: [ '2.6', '2.7', '3.0', '3.1', '3.2', '3.3' ]
+        ruby: [ '3.0', '3.1', '3.2', '3.3' ]
 
     runs-on: ${{ matrix.os }}
 
diff --git a/embed_callbacks.gemspec b/embed_callbacks.gemspec
index a274f8a..b943789 100644
--- a/embed_callbacks.gemspec
+++ b/embed_callbacks.gemspec
@@ -10,7 +10,7 @@ Gem::Specification.new do |spec|
   spec.description   = %q{Whenever you want to add a callback, you can easily incorporate the process.\n }
   spec.homepage      = "https://github.com/hotoolong/embed_callbacks"
   spec.license       = "MIT"
-  spec.required_ruby_version = Gem::Requirement.new(">= 2.6.0")
+  spec.required_ruby_version = Gem::Requirement.new(">= 3.0.0")
 
   spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }