diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f86541a..bc7bd80 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,22 +8,12 @@ jobs:
       fail-fast: false
       matrix:
         gemfile:
-          - gemfiles/rails52.gemfile
-          - gemfiles/rails61.gemfile
           - gemfiles/rails70.gemfile
           - gemfiles/rails71.gemfile
         ruby-version:
-          - "2.7"
           - "3.0"
           - "3.1"
           - "3.2"
-        exclude:
-          - gemfile: gemfiles/rails52.gemfile
-            ruby-version: "3.0"
-          - gemfile: gemfiles/rails52.gemfile
-            ruby-version: "3.1"
-          - gemfile: gemfiles/rails52.gemfile
-            ruby-version: "3.2"
         runs-on:
           - ubuntu-latest
     name: ${{ matrix.ruby-version}} on ${{ matrix.runs-on }} with ${{ matrix.gemfile }}
diff --git a/gemfiles/rails52.gemfile b/gemfiles/rails52.gemfile
deleted file mode 100644
index e7ba4d6..0000000
--- a/gemfiles/rails52.gemfile
+++ /dev/null
@@ -1,5 +0,0 @@
-source "https://rubygems.org"
-
-gemspec :path => "../"
-
-gem "rails", "~> 5.2.0"
diff --git a/gemfiles/rails52.gemfile.lock b/gemfiles/rails52.gemfile.lock
deleted file mode 100644
index 0bbfaef..0000000
--- a/gemfiles/rails52.gemfile.lock
+++ /dev/null
@@ -1,178 +0,0 @@
-PATH
-  remote: ..
-  specs:
-    gettext_i18n_rails (1.13.0)
-      fast_gettext (>= 0.9.0)
-
-GEM
-  remote: https://rubygems.org/
-  specs:
-    actioncable (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      nio4r (~> 2.0)
-      websocket-driver (>= 0.6.1)
-    actionmailer (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      actionview (= 5.2.8.1)
-      activejob (= 5.2.8.1)
-      mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 2.0)
-    actionpack (5.2.8.1)
-      actionview (= 5.2.8.1)
-      activesupport (= 5.2.8.1)
-      rack (~> 2.0, >= 2.0.8)
-      rack-test (>= 0.6.3)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.8.1)
-      activesupport (= 5.2.8.1)
-      builder (~> 3.1)
-      erubi (~> 1.4)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.8.1)
-      activesupport (= 5.2.8.1)
-      globalid (>= 0.3.6)
-    activemodel (5.2.8.1)
-      activesupport (= 5.2.8.1)
-    activerecord (5.2.8.1)
-      activemodel (= 5.2.8.1)
-      activesupport (= 5.2.8.1)
-      arel (>= 9.0)
-    activestorage (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      activerecord (= 5.2.8.1)
-      marcel (~> 1.0.0)
-    activesupport (5.2.8.1)
-      concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (>= 0.7, < 2)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
-    arel (9.0.0)
-    builder (3.2.4)
-    bump (0.10.0)
-    concurrent-ruby (1.1.10)
-    crass (1.0.6)
-    diff-lcs (1.5.0)
-    erubi (1.11.0)
-    fast_gettext (2.2.0)
-    forwardable (1.3.2)
-    gettext (3.4.3)
-      erubi
-      locale (>= 2.0.5)
-      prime
-      text (>= 1.3.0)
-    globalid (1.0.0)
-      activesupport (>= 5.0)
-    haml (5.2.2)
-      temple (>= 0.8.0)
-      tilt
-    hamlit (3.0.1)
-      temple (>= 0.8.2)
-      thor
-      tilt
-    i18n (1.12.0)
-      concurrent-ruby (~> 1.0)
-    locale (2.1.3)
-    loofah (2.18.0)
-      crass (~> 1.0.2)
-      nokogiri (>= 1.5.9)
-    mail (2.7.1)
-      mini_mime (>= 0.1.1)
-    marcel (1.0.2)
-    method_source (1.0.0)
-    mini_mime (1.1.2)
-    minitest (5.16.3)
-    nio4r (2.7.3)
-    nokogiri (1.13.8-arm64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.13.8-x86_64-linux)
-      racc (~> 1.4)
-    prime (0.1.2)
-      forwardable
-      singleton
-    racc (1.6.0)
-    rack (2.2.4)
-    rack-test (2.0.2)
-      rack (>= 1.3)
-    rails (5.2.8.1)
-      actioncable (= 5.2.8.1)
-      actionmailer (= 5.2.8.1)
-      actionpack (= 5.2.8.1)
-      actionview (= 5.2.8.1)
-      activejob (= 5.2.8.1)
-      activemodel (= 5.2.8.1)
-      activerecord (= 5.2.8.1)
-      activestorage (= 5.2.8.1)
-      activesupport (= 5.2.8.1)
-      bundler (>= 1.3.0)
-      railties (= 5.2.8.1)
-      sprockets-rails (>= 2.0.0)
-    rails-dom-testing (2.0.3)
-      activesupport (>= 4.2.0)
-      nokogiri (>= 1.6)
-    rails-html-sanitizer (1.4.3)
-      loofah (~> 2.3)
-    railties (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      activesupport (= 5.2.8.1)
-      method_source
-      rake (>= 0.8.7)
-      thor (>= 0.19.0, < 2.0)
-    rake (13.0.6)
-    rspec (3.11.0)
-      rspec-core (~> 3.11.0)
-      rspec-expectations (~> 3.11.0)
-      rspec-mocks (~> 3.11.0)
-    rspec-core (3.11.0)
-      rspec-support (~> 3.11.0)
-    rspec-expectations (3.11.0)
-      diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.11.0)
-    rspec-mocks (3.11.1)
-      diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.11.0)
-    rspec-support (3.11.0)
-    singleton (0.1.1)
-    slim (4.1.0)
-      temple (>= 0.7.6, < 0.9)
-      tilt (>= 2.0.6, < 2.1)
-    sprockets (4.1.1)
-      concurrent-ruby (~> 1.0)
-      rack (> 1, < 3)
-    sprockets-rails (3.4.2)
-      actionpack (>= 5.2)
-      activesupport (>= 5.2)
-      sprockets (>= 3.0.0)
-    sqlite3 (1.7.3-arm64-darwin)
-    sqlite3 (1.7.3-x86_64-linux)
-    temple (0.8.2)
-    text (1.3.1)
-    thor (1.2.1)
-    thread_safe (0.3.6)
-    tilt (2.0.11)
-    tzinfo (1.2.10)
-      thread_safe (~> 0.1)
-    websocket-driver (0.7.5)
-      websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.5)
-
-PLATFORMS
-  arm64-darwin-21
-  arm64-darwin-23
-  x86_64-linux
-
-DEPENDENCIES
-  bump
-  gettext (>= 3.0.2)
-  gettext_i18n_rails!
-  haml
-  hamlit
-  rails (~> 5.2.0)
-  rake
-  rspec
-  slim
-  sqlite3 (~> 1.7)
-
-BUNDLED WITH
-   2.4.3
diff --git a/gemfiles/rails61.gemfile b/gemfiles/rails61.gemfile
deleted file mode 100644
index 81a7d66..0000000
--- a/gemfiles/rails61.gemfile
+++ /dev/null
@@ -1,5 +0,0 @@
-source "https://rubygems.org"
-
-gemspec :path => "../"
-
-gem "rails", "~> 6.1.0"
diff --git a/gemfiles/rails61.gemfile.lock b/gemfiles/rails61.gemfile.lock
deleted file mode 100644
index d8d114e..0000000
--- a/gemfiles/rails61.gemfile.lock
+++ /dev/null
@@ -1,217 +0,0 @@
-PATH
-  remote: ..
-  specs:
-    gettext_i18n_rails (1.13.0)
-      fast_gettext (>= 0.9.0)
-
-GEM
-  remote: https://rubygems.org/
-  specs:
-    actioncable (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-      nio4r (~> 2.0)
-      websocket-driver (>= 0.6.1)
-    actionmailbox (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      activejob (= 6.1.7.3)
-      activerecord (= 6.1.7.3)
-      activestorage (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-      mail (>= 2.7.1)
-    actionmailer (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      actionview (= 6.1.7.3)
-      activejob (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-      mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 2.0)
-    actionpack (6.1.7.3)
-      actionview (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-      rack (~> 2.0, >= 2.0.9)
-      rack-test (>= 0.6.3)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.2.0)
-    actiontext (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      activerecord (= 6.1.7.3)
-      activestorage (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-      nokogiri (>= 1.8.5)
-    actionview (6.1.7.3)
-      activesupport (= 6.1.7.3)
-      builder (~> 3.1)
-      erubi (~> 1.4)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.1, >= 1.2.0)
-    activejob (6.1.7.3)
-      activesupport (= 6.1.7.3)
-      globalid (>= 0.3.6)
-    activemodel (6.1.7.3)
-      activesupport (= 6.1.7.3)
-    activerecord (6.1.7.3)
-      activemodel (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-    activestorage (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      activejob (= 6.1.7.3)
-      activerecord (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-      marcel (~> 1.0)
-      mini_mime (>= 1.1.0)
-    activesupport (6.1.7.3)
-      concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (>= 1.6, < 2)
-      minitest (>= 5.1)
-      tzinfo (~> 2.0)
-      zeitwerk (~> 2.3)
-    builder (3.2.4)
-    bump (0.10.0)
-    concurrent-ruby (1.2.2)
-    crass (1.0.6)
-    date (3.3.3)
-    diff-lcs (1.5.0)
-    erubi (1.12.0)
-    fast_gettext (2.3.0)
-    forwardable (1.3.3)
-    gettext (3.4.3)
-      erubi
-      locale (>= 2.0.5)
-      prime
-      text (>= 1.3.0)
-    globalid (1.1.0)
-      activesupport (>= 5.0)
-    haml (6.1.1)
-      temple (>= 0.8.2)
-      thor
-      tilt
-    hamlit (3.0.3)
-      temple (>= 0.8.2)
-      thor
-      tilt
-    i18n (1.13.0)
-      concurrent-ruby (~> 1.0)
-    locale (2.1.3)
-    loofah (2.21.3)
-      crass (~> 1.0.2)
-      nokogiri (>= 1.12.0)
-    mail (2.8.1)
-      mini_mime (>= 0.1.1)
-      net-imap
-      net-pop
-      net-smtp
-    marcel (1.0.2)
-    method_source (1.0.0)
-    mini_mime (1.1.2)
-    minitest (5.18.0)
-    net-imap (0.3.4)
-      date
-      net-protocol
-    net-pop (0.1.2)
-      net-protocol
-    net-protocol (0.2.1)
-      timeout
-    net-smtp (0.3.3)
-      net-protocol
-    nio4r (2.7.3)
-    nokogiri (1.15.2-arm64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.15.2-x86_64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.15.2-x86_64-linux)
-      racc (~> 1.4)
-    prime (0.1.2)
-      forwardable
-      singleton
-    racc (1.6.2)
-    rack (2.2.7)
-    rack-test (2.1.0)
-      rack (>= 1.3)
-    rails (6.1.7.3)
-      actioncable (= 6.1.7.3)
-      actionmailbox (= 6.1.7.3)
-      actionmailer (= 6.1.7.3)
-      actionpack (= 6.1.7.3)
-      actiontext (= 6.1.7.3)
-      actionview (= 6.1.7.3)
-      activejob (= 6.1.7.3)
-      activemodel (= 6.1.7.3)
-      activerecord (= 6.1.7.3)
-      activestorage (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-      bundler (>= 1.15.0)
-      railties (= 6.1.7.3)
-      sprockets-rails (>= 2.0.0)
-    rails-dom-testing (2.0.3)
-      activesupport (>= 4.2.0)
-      nokogiri (>= 1.6)
-    rails-html-sanitizer (1.6.0)
-      loofah (~> 2.21)
-      nokogiri (~> 1.14)
-    railties (6.1.7.3)
-      actionpack (= 6.1.7.3)
-      activesupport (= 6.1.7.3)
-      method_source
-      rake (>= 12.2)
-      thor (~> 1.0)
-    rake (13.0.6)
-    rspec (3.12.0)
-      rspec-core (~> 3.12.0)
-      rspec-expectations (~> 3.12.0)
-      rspec-mocks (~> 3.12.0)
-    rspec-core (3.12.2)
-      rspec-support (~> 3.12.0)
-    rspec-expectations (3.12.3)
-      diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-mocks (3.12.5)
-      diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.12.0)
-    rspec-support (3.12.0)
-    singleton (0.1.1)
-    slim (5.1.1)
-      temple (~> 0.10.0)
-      tilt (>= 2.1.0)
-    sprockets (4.2.0)
-      concurrent-ruby (~> 1.0)
-      rack (>= 2.2.4, < 4)
-    sprockets-rails (3.4.2)
-      actionpack (>= 5.2)
-      activesupport (>= 5.2)
-      sprockets (>= 3.0.0)
-    sqlite3 (1.7.3-arm64-darwin)
-    sqlite3 (1.7.3-x86_64-darwin)
-    sqlite3 (1.7.3-x86_64-linux)
-    temple (0.10.2)
-    text (1.3.1)
-    thor (1.2.2)
-    tilt (2.1.0)
-    timeout (0.3.2)
-    tzinfo (2.0.6)
-      concurrent-ruby (~> 1.0)
-    websocket-driver (0.7.5)
-      websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.5)
-    zeitwerk (2.6.8)
-
-PLATFORMS
-  arm64-darwin-21
-  arm64-darwin-23
-  x86_64-darwin-22
-  x86_64-linux
-
-DEPENDENCIES
-  bump
-  gettext (>= 3.0.2)
-  gettext_i18n_rails!
-  haml
-  hamlit
-  rails (~> 6.1.0)
-  rake
-  rspec
-  slim
-  sqlite3 (~> 1.7)
-
-BUNDLED WITH
-   2.4.13
diff --git a/gettext_i18n_rails.gemspec b/gettext_i18n_rails.gemspec
index 4877541..1177f5f 100644
--- a/gettext_i18n_rails.gemspec
+++ b/gettext_i18n_rails.gemspec
@@ -8,7 +8,7 @@ Gem::Specification.new name, GettextI18nRails::VERSION do |s|
   s.homepage = "http://github.com/grosser/#{name}"
   s.files = `git ls-files lib MIT-LICENSE.txt`.split("\n")
   s.license = "MIT"
-  s.required_ruby_version = '>= 2.1.0'
+  s.required_ruby_version = '>= 3.0.0'
   s.add_runtime_dependency "fast_gettext", ">= 0.9.0"
 
   s.add_development_dependency "bump"