diff --git a/.github/workflows/rubocop.yml b/.github/workflows/rubocop.yml
index 34a7285d..4a579a8e 100644
--- a/.github/workflows/rubocop.yml
+++ b/.github/workflows/rubocop.yml
@@ -13,6 +13,5 @@ jobs:
       - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.1
           bundler-cache: true
       - run: bundle exec rubocop
diff --git a/.github/workflows/spec.yml b/.github/workflows/spec.yml
index c7fe3f46..8462143f 100644
--- a/.github/workflows/spec.yml
+++ b/.github/workflows/spec.yml
@@ -17,7 +17,6 @@ jobs:
       - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.1
           bundler-cache: true
       - name: Prepare spec
         run: |