diff --git a/.github/workflows/marp.yaml b/.github/workflows/marp.yaml
index 394feb4..e8178f9 100644
--- a/.github/workflows/marp.yaml
+++ b/.github/workflows/marp.yaml
@@ -10,7 +10,7 @@ jobs:
         uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: *
+          node-version: "*"
       - name: Install dependencies
         run: npm install
       - name: Build slides to HTML