diff --git a/.github/workflows/nightly-unit-tests.yaml b/.github/workflows/nightly-unit-tests.yaml
index 002c4a35..25d40456 100644
--- a/.github/workflows/nightly-unit-tests.yaml
+++ b/.github/workflows/nightly-unit-tests.yaml
@@ -11,6 +11,7 @@ jobs:
       max-parallel: 4
       matrix:
         # Run acceptance tests all supported combinations of Ruby and ActiveRecord.
+        ruby: ["3.1", "3.2", "3.3"]
         ar: ["~> 6.1.0", "~> 7.0.0", "~> 7.1.0", "~> 7.2.0", "~> 8.0.0"]
         # Exclude combinations that are not supported.
         exclude: