diff --git a/network-api/networkapi/sitemaps.py b/network-api/networkapi/sitemaps.py
new file mode 100644
index 00000000000..eee00f7ea6d
--- /dev/null
+++ b/network-api/networkapi/sitemaps.py
@@ -0,0 +1,23 @@
+# Solution came from Aleksi44 on Github:
+# https://github.com/wagtail/wagtail/issues/6583#issuecomment-798960446
+from django.contrib.sitemaps import views as sitemap_views
+from wagtail.contrib.sitemaps.sitemap_generator import Sitemap
+
+
+class CustomSitemap(Sitemap):
+
+    def items(self):
+        return (
+            self.get_wagtail_site()
+                .root_page
+                .localized  # This is missing from sitemap_generator
+                .get_descendants(inclusive=True)
+                .live()
+                .public()
+                .order_by('path')
+                .specific())
+
+
+def sitemap(request, **kwargs):
+    sitemaps = {'wagtail': CustomSitemap(request)}
+    return sitemap_views.sitemap(request, sitemaps, **kwargs)
diff --git a/network-api/networkapi/urls.py b/network-api/networkapi/urls.py
index 1c4abdf855b..da062b8eba4 100644
--- a/network-api/networkapi/urls.py
+++ b/network-api/networkapi/urls.py
@@ -4,6 +4,7 @@
 from django.conf.urls.static import static
 from django.contrib import admin
 from django.http import HttpResponse
+from django.views.decorators.cache import cache_page
 from django.views.decorators.csrf import csrf_exempt
 from django.views.generic import TemplateView
 from django.views.generic.base import RedirectView
@@ -20,8 +21,8 @@
 
 # from wagtail.core import urls as wagtail_urls
 from .utility import watail_core_url_override as wagtail_urls
+from .sitemaps import sitemap
 
-from wagtail.contrib.sitemaps.views import sitemap
 from wagtail_footnotes import urls as footnotes_urls
 from networkapi.wagtailcustomization.image_url_tag_urls import urlpatterns as image_url_tag_urls
 from networkapi.views import EnvVariablesView, review_app_help_view
@@ -60,7 +61,6 @@
     re_path(r'^cms/', include(wagtailadmin_urls)),
     re_path(r'^en/cms/', RedirectView.as_view(url='/cms/')),
     re_path(r'^documents/', include(wagtaildocs_urls)),
-    re_path(r'^sitemap.xml$', sitemap),
 
     # Sentry test url
     path('sentry-debug', lambda r:  1 / 0) if settings.SENTRY_DSN and settings.DEBUG else None,
@@ -88,6 +88,8 @@
 
     # wagtail-managed data
     re_path(r'', include(wagtail_urls)),
+
+    path('sitemap.xml', cache_page(86400)(sitemap)),
 )
 
 if settings.USE_S3 is not True: