diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 2897d1a..2a97016 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -1,3 +1,4 @@
+---
 name: Deploy site to Pages
 
 on:
@@ -30,7 +31,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: "20"
+          node-version-file: ".node-version"
           cache: npm
       - name: Install dependencies
         run: npm ci
diff --git a/.node-version b/.node-version
new file mode 100644
index 0000000..3516580
--- /dev/null
+++ b/.node-version
@@ -0,0 +1 @@
+20.17.0