diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 62f38b5..fe917c9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby_version: [2.3, 2.4, 2.5, 2.6, 2.7, 3.0]
+        ruby_version: [2.3, 2.4, 2.5, 2.6, 2.7, 3.0, 3.1, 3.2, 3.3]
     steps:
       - name: Check out repository code
         uses: actions/checkout@v2