diff --git a/python/paddle/fluid/tests/unittests/test_decoupled_py_reader.py b/python/paddle/fluid/tests/unittests/test_decoupled_py_reader.py
index a7c1b14d269f4..0be329ac959f0 100644
--- a/python/paddle/fluid/tests/unittests/test_decoupled_py_reader.py
+++ b/python/paddle/fluid/tests/unittests/test_decoupled_py_reader.py
@@ -19,9 +19,9 @@
 import six
 import unittest
 
-EPOCH_NUM = 20
-BATCH_SIZE = 32
-BATCH_NUM = 20
+EPOCH_NUM = 5
+BATCH_SIZE = 16
+BATCH_NUM = 10
 CLASS_NUM = 10
 
 
@@ -29,7 +29,7 @@ def random_reader():
     np.random.seed(1)
     for i in range(BATCH_SIZE * BATCH_NUM):
         image = np.random.random([784])
-        label = np.random.random_integers(low=0, high=CLASS_NUM - 1)
+        label = np.random.randint(low=0, high=CLASS_NUM)
         yield image, label