diff --git a/docs/requirements.txt b/docs/requirements.txt
index 90c6171099d9bb6e5ce32ac1164ba848c14426f4..2b1fa8edcc60fc29e87032633ed53f9dd9e39aa7 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1,5 @@
 sphinx==2.1.0
 mistune
 sphinx_rtd_theme
-paddlepaddle>=1.6
+paddlepaddle>=1.8
 zmq
diff --git a/python/paddle_fl/mpc/examples/uci_demo/README.md b/python/paddle_fl/mpc/examples/uci_demo/README.md
index 4fd5d3a7a9254ab1652fe558855d5b4480222388..153af59090600b9ff39c263ee7e117344668e667 100644
--- a/python/paddle_fl/mpc/examples/uci_demo/README.md
+++ b/python/paddle_fl/mpc/examples/uci_demo/README.md
@@ -122,18 +122,18 @@ print("prediction:")
 process_data.load_decrypt_data("/tmp/uci_prediction", (BATCH_SIZE,))
 ```
 
-#### Convergence of paddle_fl.mpc vs paddle
+### 3. Convergence of paddle_fl.mpc vs paddle
 
-Below, is the result of our experiment to test the convergence of paddle_fl.mpc
+Below, is the result of our experiment to test the convergence of paddle_fl.mpc on single machine.
 
-#### A. Convergence of paddle_fl.mpc vs paddle
 
-##### 1. Training Parameters
+#### (1). Training Parameters
+
 - Dataset: Boston house price dataset
 - Number of Epoch: 20
 - Batch Size: 10
 
-##### 2. Experiment Results
+#### (2). Experiment Results
 
 | Epoch/Step | paddle_fl.mpc | Paddle |
 | ---------- | ------------- | ------ |
diff --git a/python/paddle_fl/mpc/examples/uci_demo/README_CN.md b/python/paddle_fl/mpc/examples/uci_demo/README_CN.md
index 8979e347b0248f67a9e1add20fc2f22654f41a07..66d0163dd6746b0b93571645fedc5fa0cbfd18d0 100644
--- a/python/paddle_fl/mpc/examples/uci_demo/README_CN.md
+++ b/python/paddle_fl/mpc/examples/uci_demo/README_CN.md
@@ -124,15 +124,15 @@ print("prediction:")
 process_data.load_decrypt_data("/tmp/uci_prediction", (BATCH_SIZE,))
 ```
 
-#### A. 精度测试
+### 三. 单机精度测试
 
-##### 1. 训练参数
+#### 1. 训练参数
 
 - 数据集：波士顿房价预测。
 - 训练轮数： 20
 - Batch Size：10
 
-##### 2. 实验结果
+#### 2. 实验结果
 
 | Epoch/Step | paddle_fl.mpc | Paddle |
 | ---------- | ------------- | ------ |