diff --git a/.github/workflows/browser_tests.yml b/.github/workflows/browser_tests.yml
index 0f988fb..f632cc0 100644
--- a/.github/workflows/browser_tests.yml
+++ b/.github/workflows/browser_tests.yml
@@ -24,7 +24,7 @@ jobs:
       - name: Node Setup
         uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: 18
           registry-url: https://npm.pkg.github.com/
           scope: '@gns-science'
       - name: Cypress run
diff --git a/index.html b/index.html
index ec89058..486b8c9 100644
--- a/index.html
+++ b/index.html
@@ -9,13 +9,16 @@
       name="description"
       content="Aotearoa New Zealand National Seismic Hazard Model (NSHM), also known as Te Tauira Matapae Pūmate Rū i Aotearoa. The NSHM calculates the likelihood and strength of earthquake shaking that may occur in different parts of Aotearoa New Zealand over specified time periods."
     />
+    <link
+      rel="stylesheet"
+      href="https://cdn.jsdelivr.net/npm/leaflet-timedimension@1.1.1/dist/leaflet.timedimension.control.min.css"
+    />
     <link
       rel="stylesheet"
       href="https://unpkg.com/leaflet@1.7.1/dist/leaflet.css"
       integrity="sha512-xodZBNTC5n17Xt2atTPuE1HxjVMSvLVW9ocqUKLsCC5CXdbqCmblAshOMAS6/keqq/sMZMZ19scR4PsZChSR7A=="
       crossorigin=""
     />
-
     <script
       src="https://unpkg.com/leaflet@1.7.1/dist/leaflet.js"
       integrity="sha512-XQoYMqMTK8LvdxXYG3nZ448hOEQiglfqkJs1NOQV44cWnUrBc8PkAOcXy20w0vlaXaVUearIOBhiXZ5V3ynxwA=="