diff --git a/python/paddle/fluid/tests/unittests/test_activation_op.py b/python/paddle/fluid/tests/unittests/test_activation_op.py
index d0938e657bb7227a6c1cd250fe1db93c0c9851bb..e80b9fdbebdb48d83b5e21d4b164f1fd3f0f6e07 100755
--- a/python/paddle/fluid/tests/unittests/test_activation_op.py
+++ b/python/paddle/fluid/tests/unittests/test_activation_op.py
@@ -50,7 +50,7 @@ class TestActivation(OpTest):
         self.init_dtype()
         self.init_kernel_type()
 
-        np.random.seed(2048)
+        np.random.seed(2049)
         x = np.random.uniform(0.1, 1, [11, 17]).astype(self.dtype)
         out = np.exp(x)