diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ac1f5f2c..10b940cb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -44,7 +44,7 @@ jobs:
       - name: Install Ruby and gems
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.1.x
+          ruby-version: 3.1.4
           bundler-cache: true
 
       - name: Security audit dependencies