diff --git a/.github/workflows/actions.yml b/.github/workflows/actions.yml
index 1a94e61..2b2e9c8 100644
--- a/.github/workflows/actions.yml
+++ b/.github/workflows/actions.yml
@@ -9,11 +9,11 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: [ '2.7', '3.0' ]
+        ruby: [ '3.0', '3.1', '3.2', '3.3' ]
         task: [ 'default' ]
         gemfile: [ 'rails52' ]
         include:
-        - ruby: '2.7' # lowest supported version
+        - ruby: '3.0' # lowest supported version
           task: rubocop
           gemfile: rails52
     name: ${{ matrix.ruby }} ${{ matrix.gemfile }} rake ${{ matrix.task }}
@@ -32,7 +32,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.0
+        ruby-version: 3.3
         bundler-cache: true
     - run: gem i gettext && gem i activesupport && bundle exec rake benchmark
   namespaces:
@@ -41,6 +41,6 @@ jobs:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.0
+        ruby-version: 3.3
         bundler-cache: true
     - run: echo 'gem "gettext"' >> Gemfile && echo 'gem "iconv"' >> Gemfile && bundle config unset deployment && bundle && bundle exec rake namespaces
diff --git a/.rubocop.yml b/.rubocop.yml
index afb86a2..bfd0394 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -2,7 +2,7 @@ require:
   - rubocop-packaging
 
 AllCops:
-  TargetRubyVersion: 2.7 # keep in sync with minimum version
+  TargetRubyVersion: 3.0 # keep in sync with minimum version
   Exclude:
   - vendor/**/*
   - gemfiles/vendor/**/*
diff --git a/Gemfile.lock b/Gemfile.lock
index c6a0123..a0aade7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -92,7 +92,7 @@ DEPENDENCIES
   rubocop
   rubocop-packaging
   single_cov
-  sqlite3 (~> 1.6.9)
+  sqlite3
 
 BUNDLED WITH
-   2.3.27
+   2.5.10
diff --git a/fast_gettext.gemspec b/fast_gettext.gemspec
index 5ebc13a..e81b149 100644
--- a/fast_gettext.gemspec
+++ b/fast_gettext.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new name, FastGettext::VERSION do |s|
   s.add_runtime_dependency 'prime'
 
   s.add_development_dependency 'rake'
-  s.add_development_dependency 'sqlite3', '~> 1.6.9' # last version with ruby 2.7 support
+  s.add_development_dependency 'sqlite3'
   s.add_development_dependency 'rspec'
   s.add_development_dependency 'activerecord'
   s.add_development_dependency 'i18n'
diff --git a/gemfiles/rails52.gemfile.lock b/gemfiles/rails52.gemfile.lock
index 750c774..ac99ab2 100644
--- a/gemfiles/rails52.gemfile.lock
+++ b/gemfiles/rails52.gemfile.lock
@@ -71,11 +71,11 @@ GEM
     marcel (1.0.1)
     method_source (1.0.0)
     mini_mime (1.1.1)
-    mini_portile2 (2.6.1)
+    mini_portile2 (2.8.6)
     minitest (5.14.4)
     nio4r (2.7.3)
-    nokogiri (1.12.3)
-      mini_portile2 (~> 2.6.1)
+    nokogiri (1.16.5)
+      mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     parallel (1.21.0)
     parallel_tests (2.31.0)
@@ -102,8 +102,9 @@ GEM
       bundler (>= 1.3.0)
       railties (= 5.2.6)
       sprockets-rails (>= 2.0.0)
-    rails-dom-testing (2.0.3)
-      activesupport (>= 4.2.0)
+    rails-dom-testing (2.2.0)
+      activesupport (>= 5.0.0)
+      minitest
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.4.2)
       loofah (~> 2.3)
@@ -153,7 +154,8 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sqlite3 (1.3.13)
+    sqlite3 (2.0.1)
+      mini_portile2 (~> 2.8.0)
     thor (1.1.0)
     thread_safe (0.3.6)
     tzinfo (1.2.9)
@@ -181,4 +183,4 @@ DEPENDENCIES
   sqlite3
 
 BUNDLED WITH
-   2.3.27
+   2.5.10