diff --git a/test/use-swr-focus.test.tsx b/test/use-swr-focus.test.tsx
index 83cbe1747..b27b0639d 100644
--- a/test/use-swr-focus.test.tsx
+++ b/test/use-swr-focus.test.tsx
@@ -198,7 +198,7 @@ describe('useSWR - focus', () => {
     // trigger revalidation
     await focusWindow()
     await waitForNextTick()
-    await act(() => sleep(50))
+    await act(() => sleep(100))
     await screen.findByText('data: 5')
   })