diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 53f486b..438dd93 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['3.0.5', '3.1.4']
+        ruby-version: ['3.1.4', '3.3.0']
 
     steps:
     - uses: actions/checkout@v3
diff --git a/.ruby-version b/.ruby-version
index 0aec50e..15a2799 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.1.4
+3.3.0