diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 723889e..cfe7831 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby_version: [2.4.x, 2.5.x, 2.6.x, 2.7.x]
+        ruby_version: [2.4.x, 2.5.x, 2.6.x, 2.7.x, 3.0.x]
 
     steps:
     - uses: actions/checkout@v1