.circleci/config.yml in dead_end-3.0.3 vs .circleci/config.yml in dead_end-3.1.0

@@ -1,8 +1,8 @@
 version: 2.1
 orbs:
-  ruby: circleci/ruby@1.1.2
+  ruby: circleci/ruby@1.2.0
 references:
   unit: &unit
     run:
       name: Run test suite
       command: bundle exec rspec spec/
@@ -43,10 +43,21 @@
     steps:
       - checkout
       - ruby/install-deps
       - <<: *unit
 
+  "ruby-3-1":
+    docker:
+      - image: 'cimg/base:stable'
+    steps:
+      - checkout
+      - ruby/install:
+          version: '3.1.0-preview1'
+      - run: ruby -v
+      - ruby/install-deps
+      - <<: *unit
+
   "lint":
     docker:
       - image: circleci/ruby:3.0
     steps:
       - checkout
@@ -59,6 +70,7 @@
     jobs:
       - "ruby-2-5"
       - "ruby-2-6"
       - "ruby-2-7"
       - "ruby-3-0"
+      - "ruby-3-1"
       - "lint"