diff --git a/gnet_test.go b/gnet_test.go
index 20d009bb9..2b02a08b6 100644
--- a/gnet_test.go
+++ b/gnet_test.go
@@ -1604,13 +1604,13 @@ func (t *testDisconnectedAsyncWriteServer) OnTick() (delay time.Duration, action
 
 func TestDisconnectedAsyncWrite(t *testing.T) {
 	t.Run("async-write", func(t *testing.T) {
-		events := &testDisconnectedAsyncWriteServer{tester: t, addr: ":9990"}
-		err := Run(events, "tcp://:9990", WithTicker(true))
+		events := &testDisconnectedAsyncWriteServer{tester: t, addr: ":10000"}
+		err := Run(events, "tcp://:10000", WithTicker(true))
 		assert.NoError(t, err)
 	})
 	t.Run("async-writev", func(t *testing.T) {
-		events := &testDisconnectedAsyncWriteServer{tester: t, addr: ":9991", writev: true}
-		err := Run(events, "tcp://:9991", WithTicker(true))
+		events := &testDisconnectedAsyncWriteServer{tester: t, addr: ":10001", writev: true}
+		err := Run(events, "tcp://:10001", WithTicker(true))
 		assert.NoError(t, err)
 	})
 }