diff --git a/doc/JAVA_SDK.md b/doc/JAVA_SDK.md
index ffec81c7c0e7435e91faa5aa5b0fe05d3d143837..5a02d6e88513bf29ec8139e5dc53833b62c31996 100644
--- a/doc/JAVA_SDK.md
+++ b/doc/JAVA_SDK.md
@@ -23,7 +23,7 @@ The following table shows compatibilities between Paddle Serving Server and Java
 
 You can use Apache Maven to download the SDK.
 
-```shell
+```text
  <dependency>
      <groupId>io.paddle.serving.client</groupId>
      <artifactId>paddle-serving-sdk-java</artifactId>
diff --git a/doc/JAVA_SDK_CN.md b/doc/JAVA_SDK_CN.md
index 34ff232ebf97c0701226c9d6fac8cbe34e8e9192..6159322fe1587519fb198aecf060c63a524c9e60 100644
--- a/doc/JAVA_SDK_CN.md
+++ b/doc/JAVA_SDK_CN.md
@@ -25,7 +25,7 @@ Paddle Serving 提供了 Java SDK，支持 Client 端用 Java 语言进行预测
 
 您可以使用 Apache Maven 下载该 SDK。 
 
-```shell
+```text
  <dependency>
      <groupId>io.paddle.serving.client</groupId>
      <artifactId>paddle-serving-sdk-java</artifactId>