diff --git a/.github/workflows/rspec.yml b/.github/workflows/rspec.yml
index 9306bc07..c3fdce6b 100644
--- a/.github/workflows/rspec.yml
+++ b/.github/workflows/rspec.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['2.6', '2.7', '3.3', '3.4']
+        ruby-version: ['2.6', '2.7', '3.0', '3.3', '3.4', 'head']
 
     steps:
     - uses: actions/checkout@v3