diff --git a/.github/workflows/release-gem.yml b/.github/workflows/release-gem.yml
index 1e388ee..1ac5956 100644
--- a/.github/workflows/release-gem.yml
+++ b/.github/workflows/release-gem.yml
@@ -17,10 +17,10 @@ jobs:
     - uses: actions/checkout@v3
       with:
         ref: ${{ github.event.release.tag_name }}
-    - name: Set up Ruby 2.7
+    - name: Set up Ruby 3.1
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: '2.7'
+        ruby-version: '3.1'
 
     - name: Publish to RubyGems
       run: |