diff --git a/react-ui/src/locales/en-US/pwa.ts b/react-ui/src/locales/en-US/pwa.ts
new file mode 100644
index 0000000..ed8d199
--- /dev/null
+++ b/react-ui/src/locales/en-US/pwa.ts
@@ -0,0 +1,6 @@
+export default {
+  'app.pwa.offline': 'You are offline now',
+  'app.pwa.serviceworker.updated': 'New content is available',
+  'app.pwa.serviceworker.updated.hint': 'Please press the "Refresh" button to reload current page',
+  'app.pwa.serviceworker.updated.ok': 'Refresh',
+};