diff --git a/js/components/location-map.js b/js/components/location-map.js
index fc13c2e..2e8ac1e 100644
--- a/js/components/location-map.js
+++ b/js/components/location-map.js
@@ -124,7 +124,7 @@ class LocationMap extends HTMLElement {
 
         // Invalidate size after render (fixes grey tiles issue)
         setTimeout(() => {
-            this.map.invalidateSize()
+            this.map?.invalidateSize()
         }, 100)
     }
 
diff --git a/service-worker.js b/service-worker.js
index 6f8dbcc..f8418b5 100644
--- a/service-worker.js
+++ b/service-worker.js
@@ -1,4 +1,4 @@
-const CACHE_NAME = 'dgray-v38';
+const CACHE_NAME = 'dgray-v39';
 const STATIC_ASSETS = [
     '/',
     '/index.html',
@@ -11,7 +11,7 @@ const STATIC_ASSETS = [
     '/js/router.js',
     '/js/i18n.js',
     '/js/services/crypto.js',
-    '/js/services/chat.js',
+    '/js/services/conversations.js',
     '/js/services/directus.js',
     '/js/services/auth.js',
     '/js/components/chat-widget.js',