diff --git a/.github/workflows/axe-a11y-check.yml b/.github/workflows/axe-a11y-check.yml
index 2505a9780..d7e6123f2 100644
--- a/.github/workflows/axe-a11y-check.yml
+++ b/.github/workflows/axe-a11y-check.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: 20.x
+        node-version: [20.x]
     steps:
       - uses: actions/checkout@v2
       - name: Use Node.js ${{ matrix.node-version }}