diff --git a/tests/st/quantization/mobilenetv2_quant/test_mobilenetv2_quant.py b/tests/st/quantization/mobilenetv2_quant/test_mobilenetv2_quant.py
index 363ef83d805..e935d7cade6 100644
--- a/tests/st/quantization/mobilenetv2_quant/test_mobilenetv2_quant.py
+++ b/tests/st/quantization/mobilenetv2_quant/test_mobilenetv2_quant.py
@@ -111,7 +111,7 @@ def test_mobilenetv2_quant():
                 dataset_sink_mode=False)
     print("============== End Training ==============")
 
-    export_time_used = 700
+    export_time_used = 650
     train_time = monitor.step_mseconds
     print('train_time_used:{}'.format(train_time))
     assert train_time < export_time_used