diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 103c7b3..a81f799 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -12,7 +12,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Ruby
-      uses: ruby/setup-ruby
+      uses: ruby/setup-ruby@v1
     - name: Install dependencies
       run: bundle install
     - name: Run tests