diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f01551f..8928094 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,12 +12,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.7", "3.0", "3.1", "3.2"]
+        ruby: ["2.7", "3.0", "3.1", "3.2", "3.3"]
 
     name: ${{ matrix.ruby }}
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - uses: ruby/setup-ruby@v1
       with:
@@ -26,6 +26,6 @@ jobs:
 
     - run: bundle exec rake
 
-    - uses: coverallsapp/github-action@v1.1.2
+    - uses: coverallsapp/github-action@v2
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/Gemfile.lock b/Gemfile.lock
index ff3fe23..f0e4d58 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,6 @@ PATH
   remote: .
   specs:
     memery (1.5.0)
-      ruby2_keywords (~> 0.0.2)
 
 GEM
   remote: https://rubygems.org/
@@ -88,7 +87,6 @@ GEM
     rubocop-sequel (0.3.4)
       rubocop (~> 1.0)
     ruby-progressbar (1.13.0)
-    ruby2_keywords (0.0.5)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
diff --git a/memery.gemspec b/memery.gemspec
index e98f4e0..fd8c582 100644
--- a/memery.gemspec
+++ b/memery.gemspec
@@ -21,6 +21,4 @@ Gem::Specification.new do |spec|
     f.match(%r{^(test|spec|features)/})
   end
   spec.require_paths = ["lib"]
-
-  spec.add_runtime_dependency "ruby2_keywords", "~> 0.0.2"
 end