diff --git a/docs/en/start/lock/start.md b/docs/en/start/lock/start.md
index a946a4ad2d..3658ca57b9 100644
--- a/docs/en/start/lock/start.md
+++ b/docs/en/start/lock/start.md
@@ -105,7 +105,7 @@ Demo success!
 Download java sdk and examples:
 
 ```shell @if.not.exist java-sdk
-git clone https://github.com/layotto/java-sdk.git
+git clone https://github.com/layotto/java-sdk
 ```
 
 Change directory:
@@ -138,39 +138,6 @@ TryLockResponse{success=true}
 UnlockResponse{status=LOCK_UNEXIST}
 ```
 
-### **JavaScript**
-
-Download js sdk and examples:
-
-```shell @if.not.exist js-sdk
-git clone https://github.com/layotto/js-sdk.git
-```
-
-Change directory:
-
-```shell
-cd js-sdk/demo
-```
-
-Build:
-
-```shell
-npm install
-```
-
-Run the examples:
-
-```shell
-npm run test:lock
-```
-
-And you will see:
-
-```bash
-true
-{ status: 0 }
-```
-
 <!-- tabs:end -->
 
 ## Next Step
diff --git a/docs/zh/start/lock/start.md b/docs/zh/start/lock/start.md
index 290eed312b..a224cfd1e8 100644
--- a/docs/zh/start/lock/start.md
+++ b/docs/zh/start/lock/start.md
@@ -105,7 +105,7 @@ Demo success!
 下载 java sdk 和示例代码:
 
 ```shell @if.not.exist java-sdk
-git clone https://github.com/layotto/java-sdk.git
+git clone https://github.com/layotto/java-sdk
 ```
 
 切换目录:
@@ -138,39 +138,6 @@ TryLockResponse{success=true}
 UnlockResponse{status=LOCK_UNEXIST}
 ```
 
-### **JavaScript**
-
-下载 js sdk 和示例代码:
-
-```shell @if.not.exist js-sdk
-git clone https://github.com/layotto/js-sdk.git
-```
-
-切换目录:
-
-```shell
-cd js-sdk/demo
-```
-
-构建:
-
-```shell
-npm install
-```
-
-运行:
-
-```shell
-npm run test:lock
-```
-
-打印出以下信息说明运行成功:
-
-```bash
-true
-{ status: 0 }
-```
-
 <!-- tabs:end -->
 
 ## 下一步