diff --git a/web/src/sw.ts b/web/src/sw.ts
index 4849b63..4dc6da9 100644
--- a/web/src/sw.ts
+++ b/web/src/sw.ts
@@ -1,6 +1,6 @@
 import { createHandlerBoundToURL, precacheAndRoute, cleanupOutdatedCaches } from 'workbox-precaching'
 import { clientsClaim } from 'workbox-core'
-import { StaleWhileRevalidate, NetworkFirst } from 'workbox-strategies'
+import { StaleWhileRevalidate } from 'workbox-strategies'
 import { registerRoute } from 'workbox-routing'
 
 declare let self: ServiceWorkerGlobalScope
@@ -18,9 +18,7 @@ precacheAndRoute(self.__WB_MANIFEST)
 
 register('capabilities/buildmap', new StaleWhileRevalidate())
 
-// Cache map tiles using NetworkFirst for the moment - may be worth switching
-// to StaleWhileRevalidate closer to the event.
-register('maps', new StaleWhileRevalidate())
+register('maps', new StaleWhileRevalidate({ cacheName: 'maps-20240527' }))
 
 try {
     // Only catch requests to the root URL (a regex doesn't do this).