diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index f442a4bb..3d0db1c9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-20.04, windows-2019]
-        ruby: ['1.9.3', '2.0', '2.1', '2.2', '2.3', '2.4', '2.5', '2.6', '2.7', '3.0', '3.1', jruby-1.7, jruby-9.0, jruby-9.1, jruby-9.2, jruby-9.3]
+        ruby: ['1.9.3', '2.0', '2.1', '2.2', '2.3', '2.4', '2.5', '2.6', '2.7', '3.0', '3.1', '3.2', jruby-1.7, jruby-9.0, jruby-9.1, jruby-9.2, jruby-9.3, jruby-9.4]
         architecture: [default]
         name_suffix: ['']
         experimental: [false]