diff --git a/.github/workflows/static.yml b/.github/workflows/static.yml
index fb6f5aa..472259e 100644
--- a/.github/workflows/static.yml
+++ b/.github/workflows/static.yml
@@ -24,6 +24,7 @@ jobs:
     steps:
       - uses: ruby/setup-ruby@v1
         with:
+          ruby-version: 2.7.4
           bundler-cache: true
       - name: Checkout
         uses: actions/checkout@v4