diff --git a/messenger/notifications/backend/__tests__/push.channel.spec.ts b/messenger/notifications/backend/__tests__/push.channel.spec.ts
index ee0164a..fb943fb 100644
--- a/messenger/notifications/backend/__tests__/push.channel.spec.ts
+++ b/messenger/notifications/backend/__tests__/push.channel.spec.ts
@@ -59,7 +59,7 @@ describe('PushChannel', () => {
       const reminder = makeReminder();
       await channel.dispatch(reminder);
 
-      expect(mockFetch).toHaveBeenCalledOnce();
+      expect(mockFetch).toHaveBeenCalledTimes(1);
       const [url, init] = mockFetch.mock.calls[0] as [string, RequestInit];
       expect(url).toBe('http://localhost:3850/api/push/fire');
       expect(init.method).toBe('POST');