diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 74b5e96..123f36c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,8 +10,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [2.4, 2.7, '3.1']
+        ruby: [2.4, 2.7, 3.1, 3.3]
         graphql_version: ['~> 1.10.0', '~> 1.13', '~> 2.0']
+        exclude:
+          - ruby: 2.4
+            graphql_version: '~> 1.10.0'
+          - ruby: 2.4
+            graphql_version: '~> 1.13'
     steps:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1