diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e29d601..a5b1557 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -19,7 +19,7 @@ jobs:
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.7.4
+        ruby-version: 3.3.4
         bundler-cache: true
 
     - name: Run tests
diff --git a/.rubocop.yml b/.rubocop.yml
index 7457108..82e3368 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,6 +1,6 @@
 AllCops:
   NewCops: enable
-  TargetRubyVersion: 2.7
+  TargetRubyVersion: 3.3
   Exclude:
     - _site/**/*
     - vendor/**/*