diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 580bbf4..002bac4 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -11,9 +11,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@master
-    - uses: ruby/setup-ruby@v1
+    - name: Set up Ruby 2.7
+      uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.6
+        ruby-version: 2.7
     - name: Publish to RubyGems
       run: |
         mkdir -p $HOME/.gem