diff --git a/src/background.js b/src/background.js
index a8bc600..37a5ca6 100644
--- a/src/background.js
+++ b/src/background.js
@@ -49,6 +49,9 @@ function fetchSpaceApi() {
 }
 
 async function fetchNewData() {
+	if (!globalThis.navigator.onLine) {
+		return;
+	}
 	try {
 		const result = await Promise.allSettled([fetchCalendar(), fetchSpaceApi()]);
 		const calendarJson = result[0].value;