diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index fa31c03..e2c4641 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -12,14 +12,15 @@ jobs:
       matrix:
         gemfile: [Gemfile]
         ruby:
-          - "2.1"
-          - "2.2"
           - "2.3"
           - "2.4"
           - "2.5"
           - "2.6"
           - "2.7"
           - "3.0"
+          - "3.1"
+          - "3.2"
+          - "3.3"
           - jruby
           - truffleruby
         include: