diff --git a/README.en-US.md b/README.en-US.md
index d0d8a1f11..13100a5cd 100644
--- a/README.en-US.md
+++ b/README.en-US.md
@@ -34,7 +34,7 @@ Welcome everyone to join the Alink open source user group to communicate.
   - PyAlink provides different Python packages for Flink versions that Alink supports: 
   package `pyalink` always maintains Alink Python API against the latest Flink version, which is 1.13, 
   while `pyalink-flink-***` support old-version Flink, which are `pyalink-flink-1.12`, `pyalink-flink-1.11`, `pyalink-flink-1.10` and `pyalink-flink-1.9` for now. 
-  - The version of python packages always follows Alink Java version, like `1.5.4`.
+  - The version of python packages always follows Alink Java version, like `1.5.7`.
   
 #### Installation steps:
 
@@ -50,11 +50,11 @@ Welcome everyone to join the Alink open source user group to communicate.
 If `pyalink` or `pyalink-flink-***` was/were installed, please use `pip uninstall pyalink` or `pip uninstall pyalink-flink-***` to remove them.
 
 2. If `pip install` is slow of failed, refer to [this article](https://segmentfault.com/a/1190000006111096) to change the pip source, or use the following download links:
-    - Flink 1.13：[Link](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.6/pyalink-1.5.6-py3-none-any.whl) (MD5: d2317fdab4f8c6a032f3d910d42f5e7c)
-    - Flink 1.12：[Link](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.6/pyalink_flink_1.12-1.5.6-py3-none-any.whl) (MD5: 7d0611de4e778da289b9b050e2b4fb9e)
-    - Flink 1.11：[Link](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.6/pyalink_flink_1.11-1.5.6-py3-none-any.whl) (MD5: ad3d350f0012fcad2fe89436710f6518)
-    - Flink 1.10：[Link](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.6/pyalink_flink_1.10-1.5.6-py3-none-any.whl) (MD5: 44df38e40d03e8293fa1b26917df63f3)
-    - Flink 1.9: [Link](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.6/pyalink_flink_1.9-1.5.6-py3-none-any.whl) (MD5: 2c9f33b99dbfd141c03ee7006d7c1ab3)
+    - Flink 1.13：[Link](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.7/pyalink-1.5.7-py3-none-any.whl) (MD5: 75013a0e512e9e11cc0ca3502737021b)
+    - Flink 1.12：[Link](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.7/pyalink_flink_1.12-1.5.7-py3-none-any.whl) (MD5: 958221a941faa806dee31091043ecfab)
+    - Flink 1.11：[Link](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.7/pyalink_flink_1.11-1.5.7-py3-none-any.whl) (MD5: 96c2f78005708a0c645cd921cc41f05f)
+    - Flink 1.10：[Link](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.7/pyalink_flink_1.10-1.5.7-py3-none-any.whl) (MD5: 7fe7765c307d91dc7296baf886ab79cb)
+    - Flink 1.9: [Link](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.7/pyalink_flink_1.9-1.5.7-py3-none-any.whl) (MD5: 07d462b66159142b0342a61be9c5462b)
 3. If multiple version of Python exist, you may need to use a special version of `pip`, like `pip3`;
 If Anaconda is used, the command should be run in Anaconda prompt. 
 
@@ -159,7 +159,7 @@ pipeline.fit(data).transform(data).print();
 <dependency>
     <groupId>com.alibaba.alink</groupId>
     <artifactId>alink_core_flink-1.13_2.11</artifactId>
-    <version>1.5.6</version>
+    <version>1.5.7</version>
 </dependency>
 <dependency>
     <groupId>org.apache.flink</groupId>
@@ -183,7 +183,7 @@ pipeline.fit(data).transform(data).print();
 <dependency>
     <groupId>com.alibaba.alink</groupId>
     <artifactId>alink_core_flink-1.12_2.11</artifactId>
-    <version>1.5.6</version>
+    <version>1.5.7</version>
 </dependency>
 <dependency>
     <groupId>org.apache.flink</groupId>
@@ -207,7 +207,7 @@ pipeline.fit(data).transform(data).print();
 <dependency>
     <groupId>com.alibaba.alink</groupId>
     <artifactId>alink_core_flink-1.11_2.11</artifactId>
-    <version>1.5.6</version>
+    <version>1.5.7</version>
 </dependency>
 <dependency>
     <groupId>org.apache.flink</groupId>
@@ -231,7 +231,7 @@ pipeline.fit(data).transform(data).print();
 <dependency>
     <groupId>com.alibaba.alink</groupId>
     <artifactId>alink_core_flink-1.10_2.11</artifactId>
-    <version>1.5.6</version>
+    <version>1.5.7</version>
 </dependency>
 <dependency>
     <groupId>org.apache.flink</groupId>
@@ -251,7 +251,7 @@ pipeline.fit(data).transform(data).print();
 <dependency>
     <groupId>com.alibaba.alink</groupId>
     <artifactId>alink_core_flink-1.9_2.11</artifactId>
-    <version>1.5.6</version>
+    <version>1.5.7</version>
 </dependency>
 <dependency>
     <groupId>org.apache.flink</groupId>
diff --git a/README.md b/README.md
index 4a8b3fcff..22a02ba6e 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@
 
   - PyAlink 根据 Alink 所支持的 Flink 版本提供不同的 Python 包：
 其中，`pyalink` 包对应为 Alink 所支持的最新 Flink 版本，当前为 1.13，而 `pyalink-flink-***` 为旧版本的 Flink 版本，当前提供 `pyalink-flink-1.12`, `pyalink-flink-1.11`, `pyalink-flink-1.10` 和 `pyalink-flink-1.9`。
-  - Python 包的版本号与 Alink 的版本号一致，例如`1.5.6`。
+  - Python 包的版本号与 Alink 的版本号一致，例如`1.5.7`。
 
 ####安装步骤：
 1. 确保使用环境中有Python3，版本限于 3.6，3.7 和 3.8。
@@ -61,11 +61,11 @@
 1. `pyalink` 和 `pyalink-flink-***` 不能同时安装，也不能与旧版本同时安装。
 如果之前安装过 `pyalink` 或者 `pyalink-flink-***`，请使用`pip uninstall pyalink` 或者 `pip uninstall pyalink-flink-***` 卸载之前的版本。
 2. 出现`pip`安装缓慢或不成功的情况，可以参考[这篇文章](https://segmentfault.com/a/1190000006111096)修改pip源，或者直接使用下面的链接下载 whl 包，然后使用 `pip` 安装：
-   - Flink 1.13：[链接](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.6/pyalink-1.5.6-py3-none-any.whl) (MD5: d2317fdab4f8c6a032f3d910d42f5e7c)
-   - Flink 1.12：[链接](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.6/pyalink_flink_1.12-1.5.6-py3-none-any.whl) (MD5: 7d0611de4e778da289b9b050e2b4fb9e)
-   - Flink 1.11：[链接](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.6/pyalink_flink_1.11-1.5.6-py3-none-any.whl) (MD5: ad3d350f0012fcad2fe89436710f6518)
-   - Flink 1.10：[链接](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.6/pyalink_flink_1.10-1.5.6-py3-none-any.whl) (MD5: 44df38e40d03e8293fa1b26917df63f3)
-   - Flink 1.9: [链接](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.6/pyalink_flink_1.9-1.5.6-py3-none-any.whl) (MD5: 2c9f33b99dbfd141c03ee7006d7c1ab3)
+   - Flink 1.13：[链接](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.7/pyalink-1.5.7-py3-none-any.whl) (MD5: 75013a0e512e9e11cc0ca3502737021b)
+   - Flink 1.12：[链接](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.7/pyalink_flink_1.12-1.5.7-py3-none-any.whl) (MD5: 958221a941faa806dee31091043ecfab)
+   - Flink 1.11：[链接](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.7/pyalink_flink_1.11-1.5.7-py3-none-any.whl) (MD5: 96c2f78005708a0c645cd921cc41f05f)
+   - Flink 1.10：[链接](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.7/pyalink_flink_1.10-1.5.7-py3-none-any.whl) (MD5: 7fe7765c307d91dc7296baf886ab79cb)
+   - Flink 1.9: [链接](https://alink-release.oss-cn-beijing.aliyuncs.com/v1.5.7/pyalink_flink_1.9-1.5.7-py3-none-any.whl) (MD5: 07d462b66159142b0342a61be9c5462b)
 3. 如果有多个版本的 Python，可能需要使用特定版本的 `pip`，比如 `pip3`；如果使用 Anaconda，则需要在 Anaconda 命令行中进行安装。
 
 ### 开始使用：
@@ -139,7 +139,7 @@ pipeline.fit(data).transform(data).print();
 <dependency>
     <groupId>com.alibaba.alink</groupId>
     <artifactId>alink_core_flink-1.13_2.11</artifactId>
-    <version>1.5.6</version>
+    <version>1.5.7</version>
 </dependency>
 <dependency>
     <groupId>org.apache.flink</groupId>
@@ -163,7 +163,7 @@ pipeline.fit(data).transform(data).print();
 <dependency>
     <groupId>com.alibaba.alink</groupId>
     <artifactId>alink_core_flink-1.12_2.11</artifactId>
-    <version>1.5.6</version>
+    <version>1.5.7</version>
 </dependency>
 <dependency>
     <groupId>org.apache.flink</groupId>
@@ -187,7 +187,7 @@ pipeline.fit(data).transform(data).print();
 <dependency>
     <groupId>com.alibaba.alink</groupId>
     <artifactId>alink_core_flink-1.11_2.11</artifactId>
-    <version>1.5.6</version>
+    <version>1.5.7</version>
 </dependency>
 <dependency>
     <groupId>org.apache.flink</groupId>
@@ -211,7 +211,7 @@ pipeline.fit(data).transform(data).print();
 <dependency>
     <groupId>com.alibaba.alink</groupId>
     <artifactId>alink_core_flink-1.10_2.11</artifactId>
-    <version>1.5.6</version>
+    <version>1.5.7</version>
 </dependency>
 <dependency>
     <groupId>org.apache.flink</groupId>
@@ -231,7 +231,7 @@ pipeline.fit(data).transform(data).print();
 <dependency>
     <groupId>com.alibaba.alink</groupId>
     <artifactId>alink_core_flink-1.9_2.11</artifactId>
-    <version>1.5.6</version>
+    <version>1.5.7</version>
 </dependency>
 <dependency>
     <groupId>org.apache.flink</groupId>