diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 91cac83..e7dd1d4 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -25,11 +25,16 @@ jobs:
 
     strategy:
       matrix:
-        ruby: ["3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.2", "3.3", "3.4"]
         gemfile:
           - rails_61
           - rails_70
           - rails_71
+        exclude:
+          - ruby: "3.4"
+            gemfile: rails_61
+          - ruby: "3.4"
+            gemfile: rails_70
 
     env:
       BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}.gemfile
diff --git a/.rubocop.yml b/.rubocop.yml
index 892c930..3c25a42 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -15,7 +15,7 @@ AllCops:
     - 'spec/dummy/bin/*'
     - 'spec/dummy/db/schema.rb'
   NewCops: enable
-  TargetRubyVersion: 3.0
+  TargetRubyVersion: 3.2
 
 Rails:
   Enabled: true
diff --git a/publify_textfilter_code.gemspec b/publify_textfilter_code.gemspec
index 1436362..76c6dd3 100644
--- a/publify_textfilter_code.gemspec
+++ b/publify_textfilter_code.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |s|
 
   s.files       = File.open("Manifest.txt").readlines.map(&:chomp)
 
-  s.required_ruby_version = ">= 3.0.0"
+  s.required_ruby_version = ">= 3.2.0"
 
   s.add_dependency "coderay", "~> 1.1.0"
   s.add_dependency "htmlentities", "~> 4.3"