diff --git a/.github/workflows/publish-geml.yaml b/.github/workflows/publish-geml.yaml
index 99e3060..10a86e2 100644
--- a/.github/workflows/publish-geml.yaml
+++ b/.github/workflows/publish-geml.yaml
@@ -28,10 +28,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Ruby 2.6
-        uses: ruby/setup-ruby@ec02537da5712d66d4d50a0f33b7eb52773b5ed1
+      - name: Set up Ruby 2.7
+        uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '2.6'
+          ruby-version: '2.7'
       - run: bundle install
 
       - name: Publish to RubyGems