diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0ac8b1a..00b888b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [2.6, 2.7, '3.0', 3.1, 3.2, ruby-head, jruby]
+        ruby: ['3.0', 3.1, 3.2, ruby-head, jruby]
     steps:
       - name: Clone repository
         uses: actions/checkout@v3
@@ -33,6 +33,6 @@ jobs:
         run: ruby --version; bundle exec rspec spec || $ALLOW_FAILURES
       - name: Coveralls GitHub Action
         uses: coverallsapp/github-action@v2
-        if: "matrix.ruby == '3.0'"
+        if: "matrix.ruby == '3.2'"
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/README.md b/README.md
index c051b29..e9bf84f 100755
--- a/README.md
+++ b/README.md
@@ -68,9 +68,9 @@ There is a new `:stream` option to {RDF::TriG::Writer} which is more efficient f
       
 ## Dependencies
 
-* [Ruby](https://ruby-lang.org/) (>= 2.6)
-* [RDF.rb](https://rubygems.org/gems/rdf) (~> 3.2)
-* [rdf-turtle](https://rubygems.org/gems/rdf-turtle) (~> 3.2)
+* [Ruby](https://ruby-lang.org/) (>= 3.0)
+* [RDF.rb](https://rubygems.org/gems/rdf) (~> 3.3)
+* [rdf-turtle](https://rubygems.org/gems/rdf-turtle) (~> 3.3)
 
 ## Installation
 
diff --git a/VERSION b/VERSION
index 944880f..15a2799 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.2.0
+3.3.0
diff --git a/rdf-trig.gemspec b/rdf-trig.gemspec
index c7e0dc6..df1b9b6 100755
--- a/rdf-trig.gemspec
+++ b/rdf-trig.gemspec
@@ -25,17 +25,17 @@ Gem::Specification.new do |gem|
   gem.files                 = %w(AUTHORS README.md History UNLICENSE VERSION) + Dir.glob('lib/**/*.rb')
   gem.require_paths         = %w(lib)
 
-  gem.required_ruby_version = '>= 2.6'
+  gem.required_ruby_version = '>= 3.0'
   gem.requirements          = []
-  gem.add_runtime_dependency     'rdf',             '~> 3.2'
-  gem.add_runtime_dependency     'ebnf',            '~> 2.3'
-  gem.add_runtime_dependency     'rdf-turtle',      '~> 3.2'
-  gem.add_development_dependency 'json-ld',         '~> 3.2'
-  gem.add_development_dependency 'rspec',           '~> 3.10'
+  gem.add_runtime_dependency     'rdf',             '~> 3.3'
+  gem.add_runtime_dependency     'ebnf',            '~> 2.4'
+  gem.add_runtime_dependency     'rdf-turtle',      '~> 3.3'
+  gem.add_development_dependency 'json-ld',         '~> 3.3'
+  gem.add_development_dependency 'rspec',           '~> 3.12'
   gem.add_development_dependency 'rspec-its',       '~> 1.3'
-  gem.add_development_dependency 'rdf-isomorphic',  '~> 3.2'
+  gem.add_development_dependency 'rdf-isomorphic',  '~> 3.3'
   gem.add_development_dependency 'yard' ,           '~> 0.9'
-  gem.add_development_dependency 'rdf-spec',        '~> 3.2'
+  gem.add_development_dependency 'rdf-spec',        '~> 3.3'
 
   gem.post_install_message  = nil
 end