diff --git a/.github/workflows/minitest.yml b/.github/workflows/minitest.yml
index 0035de116..66ae36f7f 100644
--- a/.github/workflows/minitest.yml
+++ b/.github/workflows/minitest.yml
@@ -42,7 +42,7 @@ jobs:
           path: vendor/publishing-api
 
       - name: Setup Ruby
-        uses: ruby/setup-ruby@v1
+        uses: ruby/setup-ruby@v1.308.0
         with:
           bundler-cache: true