diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 9aa1a3e..c549bc8 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -13,6 +13,7 @@ jobs:
         node: 
           - 18
           - 20
+          - 21
     name: Node ${{ matrix.node }} test
     steps:
       - name: Clone repository