diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 542c986b..bf0ae5ee 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,6 +17,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         ruby-version:
+          - '3.0'
           - '3.1'
           - '3.2'
           - '3.3'
diff --git a/config/default.yml b/config/default.yml
index 46d32ff8..b5efdd32 100644
--- a/config/default.yml
+++ b/config/default.yml
@@ -1,6 +1,6 @@
 AllCops:
-  # Prevent RuboCop from exploding when it finds an older-than-2.6 .ruby-version
-  TargetRubyVersion: 2.6
+  # Prevent RuboCop from exploding when it finds an older .ruby-version
+  TargetRubyVersion: 3.0
   Exclude: []
   DisabledByDefault: true
   StyleGuideBaseURL: https://github.com/standardrb/standard
diff --git a/config/ruby-3.2.yml b/config/ruby-3.2.yml
index 4c6b021a..35893bdc 100644
--- a/config/ruby-3.2.yml
+++ b/config/ruby-3.2.yml
@@ -1,4 +1,4 @@
-inherit_from: ./base.yml
+inherit_from: ./ruby-3.3.yml
 
 AllCops:
   TargetRubyVersion: 3.2
diff --git a/config/ruby-3.3.yml b/config/ruby-3.3.yml
new file mode 100644
index 00000000..cfbf600e
--- /dev/null
+++ b/config/ruby-3.3.yml
@@ -0,0 +1,4 @@
+inherit_from: ./base.yml
+
+AllCops:
+  TargetRubyVersion: 3.3
diff --git a/lib/standard/base/plugin.rb b/lib/standard/base/plugin.rb
index a092d982..3d0c4b63 100644
--- a/lib/standard/base/plugin.rb
+++ b/lib/standard/base/plugin.rb
@@ -57,6 +57,8 @@ def determine_yaml_path(desired_version)
         "ruby-3.1.yml"
       elsif desired_version < Gem::Version.new("3.3")
         "ruby-3.2.yml"
+      elsif desired_version < Gem::Version.new("3.4")
+        "ruby-3.3.yml"
       else
         default
       end
diff --git a/standard.gemspec b/standard.gemspec
index 93451e31..0a8ec863 100644
--- a/standard.gemspec
+++ b/standard.gemspec
@@ -7,7 +7,7 @@ Gem::Specification.new do |spec|
   spec.version = Standard::VERSION
   spec.authors = ["Justin Searls"]
   spec.email = ["searls@gmail.com"]
-  spec.required_ruby_version = ">= 2.6.0"
+  spec.required_ruby_version = ">= 3.0.0"
 
   spec.summary = "Ruby Style Guide, with linter & automatic code fixer"
   spec.homepage = "https://github.com/standardrb/standard"
diff --git a/test/standard/base/plugin_test.rb b/test/standard/base/plugin_test.rb
index 43a5b918..2a9f0754 100644
--- a/test/standard/base/plugin_test.rb
+++ b/test/standard/base/plugin_test.rb
@@ -8,7 +8,8 @@ def setup
     end
 
     def test_paths
-      assert_match "base.yml", @subject.rules(LintRoller::Context.new(target_ruby_version: "3.3.0")).value.to_s
+      assert_match "base.yml", @subject.rules(LintRoller::Context.new(target_ruby_version: "3.4.0")).value.to_s
+      assert_match "ruby-3.3.yml", @subject.rules(LintRoller::Context.new(target_ruby_version: "3.3.3")).value.to_s
       assert_match "ruby-3.2.yml", @subject.rules(LintRoller::Context.new(target_ruby_version: "3.2.1")).value.to_s
       assert_match "ruby-2.7.yml", @subject.rules(LintRoller::Context.new(target_ruby_version: Gem::Version.new("2.8.2"))).value.to_s
       assert_match "ruby-1.9.yml", @subject.rules(LintRoller::Context.new(target_ruby_version: Gem::Version.new("1.9.3"))).value.to_s