diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index e2ce0b49..0abf017f 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -25,7 +25,7 @@ jobs:
     # change this to (see https://github.com/ruby/setup-ruby#versioning):
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.6
+        ruby-version: 2.7
     - name: Install dependencies
       run: bundle install
     - name: Run tests