diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e1da37c..cd869c6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,7 +20,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
+        uses: ruby/setup-ruby@v1.300.0
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true