diff --git a/python/paddle/trainer_config_helpers/tests/configs/protostr/test_bilinear_interp.protostr b/python/paddle/trainer_config_helpers/tests/configs/protostr/test_bilinear_interp.protostr
index d4cbfc2389ac50e54c6cb467aaa9017be9ce8ce0..13d0d477eb58f6da887d0ad9c683caef37e00010 100644
--- a/python/paddle/trainer_config_helpers/tests/configs/protostr/test_bilinear_interp.protostr
+++ b/python/paddle/trainer_config_helpers/tests/configs/protostr/test_bilinear_interp.protostr
@@ -83,7 +83,7 @@ parameters {
   name: "___conv_0__.w0"
   size: 144
   initial_mean: 0.0
-  initial_std: 0.471404522657
+  initial_std: 0.471404520791
   initial_strategy: 0
   initial_smart: false
 }