diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 209757a..056e122 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -13,6 +13,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
 
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
       - name: Lint Markdown
         uses: DavidAnson/markdownlint-cli2-action@v22
         with: