diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 4302567..1b573a0 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -18,7 +18,7 @@ jobs:
         include:
           - { ruby: 2.3, c-o-e: false }
           - { ruby: 2.7, c-o-e: false }
-          - { ruby: 3.0, c-o-e: false }
+          - { ruby: '3.0', c-o-e: false }
           - { ruby: 3.1, c-o-e: false }
           - { ruby: jruby-9.4.0.0, c-o-e: false }
           - { ruby: ruby-head, c-o-e: true }
@@ -27,7 +27,7 @@ jobs:
           - { ruby: truffleruby-head, c-o-e: true }
           - { ruby: 3.1, gemfile: ./gemfiles/miniracer, c-o-e: false }
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with: