diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml
index 26052eb..596c890 100644
--- a/.github/workflows/ci-cd.yml
+++ b/.github/workflows/ci-cd.yml
@@ -113,6 +113,7 @@ jobs:
             --install=https://github.com/rclement/datasette-dashboards/archive/${GITHUB_SHA}.zip \
             --project=${{ secrets.VERCEL_PROJECT }} \
             --token=${{ secrets.VERCEL_TOKEN }} \
+            --vercel-json=demo/vercel.json \
             --no-prod)
           vercel alias --token ${{ secrets.VERCEL_TOKEN }} set ${VERCEL_URL} ${VERCEL_ALIAS}
 
@@ -154,7 +155,8 @@ jobs:
             --install=datasette-sqlite-http \
             --install=https://github.com/rclement/datasette-dashboards/archive/${GITHUB_SHA}.zip \
             --project=${{ secrets.VERCEL_PROJECT }} \
-            --token=${{ secrets.VERCEL_TOKEN }}
+            --token=${{ secrets.VERCEL_TOKEN }} \
+            --vercel-json=demo/vercel.json
 
   publish-package-test:
     runs-on: ubuntu-latest
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9853828..f713fbc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Demo Vercel deployment resulting in error 500
+
+### Changed
+- Update dependencies
 
 ## [0.7.0] - 2024-11-14
 ### Added
diff --git a/demo/vercel.json b/demo/vercel.json
new file mode 100644
index 0000000..0ebc822
--- /dev/null
+++ b/demo/vercel.json
@@ -0,0 +1,15 @@
+{
+    "name": "datasette-dashboards-demo",
+    "builds": [
+        {
+            "src": "index.py",
+            "use": "@vercel/python@4.6.0"
+        }
+    ],
+    "routes": [
+        {
+            "src": "(.*)",
+            "dest": "index.py"
+        }
+    ]
+}
\ No newline at end of file