diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b6072a2..42b69f5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,11 +18,11 @@ jobs:
       fail-fast: false
       matrix:
         ruby_version:
-        - 2.5
-        - 2.7
-        - 3.0
+        - "2.7"
+        - "3.0"
+        - "3.3"
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 5
       - name: "Set up Ruby ${{ matrix.ruby_version }}"
@@ -41,20 +41,20 @@ jobs:
 
   ghp:
     if: "!contains(github.event.commits[0].message, '[ci skip]')"
-    name: Ruby 2.7 with GitHub Pages Gem
+    name: Ruby 3.3 with GitHub Pages Gem
     runs-on: 'ubuntu-latest'
     env:
       GH_PAGES: true
     strategy:
       fail-fast: false
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 5
-      - name: "Set up Ruby 2.7"
+      - name: "Set up Ruby 3.3"
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.7
+          ruby-version: 3.3
           bundler-cache: true
       - name: Execute tests
         run:  bash script/test
diff --git a/.rubocop.yml b/.rubocop.yml
index dc87809..64db333 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -30,6 +30,9 @@ Performance/RedundantEqualityComparisonBlock:
 Performance/RedundantSplitRegexpArgument:
   Enabled: true
 
+Style/ConcatArrayLiterals:
+  Exclude:
+    - 'jekyll-redirect-from.gemspec'
 Style/InPatternThen:
   Enabled: false
 Style/MultilineInPatternThen:
diff --git a/jekyll-redirect-from.gemspec b/jekyll-redirect-from.gemspec
index 56ba1e9..713ef0b 100644
--- a/jekyll-redirect-from.gemspec
+++ b/jekyll-redirect-from.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "bundler"
   spec.add_development_dependency "jekyll-sitemap", "~> 1.0"
-  spec.add_development_dependency "rake", "~> 12.0"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec", "~> 3.5"
-  spec.add_development_dependency "rubocop-jekyll", "~> 0.12.0"
+  spec.add_development_dependency "rubocop-jekyll", "~> 0.13.0"
 end