diff --git a/.github/workflows/test-deploy.yml b/.github/workflows/test-deploy.yml
index 282f1ff..9a80b31 100644
--- a/.github/workflows/test-deploy.yml
+++ b/.github/workflows/test-deploy.yml
@@ -13,13 +13,16 @@ jobs:
   test-deploy:
     name: Test deployment
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [20, 22]
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v4
         with:
-          node-version: 22
+          node-version: ${{ matrix.node-version }}
           cache: npm
           cache-dependency-path: './website/package-lock.json'
 
@@ -28,3 +31,4 @@ jobs:
 
       - name: Test build website
         run: npm run build
+        continue-on-error: false
diff --git a/README.md b/README.md
index 9bc3de2..bf41da2 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,8 @@ Below are steps for initialising and reproducing this portal for development.
 ## Dependencies
 
 1.  The latest version of [Node](https://nodejs.org/en/download/) installed. 
-    > You have to be on Node >= 18.x
+    > You have to be on Node >= 20.x. This is the default version on Ubuntu 24.04 "Noble Numbat" or later,
+    and Debian 13 "Trixie" or later.
 
 ## Installation
 
diff --git a/website/package-lock.json b/website/package-lock.json
index d3d145e..58a702c 100644
--- a/website/package-lock.json
+++ b/website/package-lock.json
@@ -17,7 +17,7 @@
         "@docusaurus/module-type-aliases": "^3.7.0"
       },
       "engines": {
-        "node": ">=18.0"
+        "node": ">=20.0"
       }
     },
     "node_modules/@algolia/autocomplete-core": {
diff --git a/website/package.json b/website/package.json
index 4a2e5d8..a8c2c97 100644
--- a/website/package.json
+++ b/website/package.json
@@ -35,6 +35,6 @@
     ]
   },
   "engines": {
-    "node": ">=18.0"
+    "node": ">=20.0"
   }
 }