diff --git a/tests/test_server.rs b/tests/test_server.rs
index f22ae19..2038ceb 100644
--- a/tests/test_server.rs
+++ b/tests/test_server.rs
@@ -761,15 +761,15 @@ async fn test_frame_read_rate() -> std::io::Result<()> {
     sleep(Millis(100)).await;
     io.write(&buf[..10]).unwrap();
     buf.split_to(10);
-    sleep(Millis(500)).await;
+    sleep(Millis(1000)).await;
     assert!(!check.load(Relaxed));
 
     io.write(&buf[..12]).unwrap();
     buf.split_to(12);
-    sleep(Millis(500)).await;
+    sleep(Millis(1000)).await;
     assert!(!check.load(Relaxed));
 
-    sleep(Millis(1200)).await;
+    sleep(Millis(2100)).await;
     assert!(check.load(Relaxed));
 
     Ok(())