diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 803ab7592..16ac1c645 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -46,6 +46,7 @@ Leno Hou <lenohou@gmail.com>
 letty <learn5411@gmail.com>
 letty <letty.ll@alibaba-inc.com>
 letty.ll <letty.ll@alibaba-inc.com>
+Lifubang <lifubang@acmcoder.com>
 luman.qy <luman.qy@cainiao.com>
 Mark Liu <manlge168@gmail.com>
 MarkLux <marlx6590@163.com>
diff --git a/docs/api/HTTP_API.md b/docs/api/HTTP_API.md
index 0b85090a8..9ab69a9d6 100644
--- a/docs/api/HTTP_API.md
+++ b/docs/api/HTTP_API.md
@@ -749,7 +749,7 @@ POST /containers/{id}/stop
 <a name="containertop"></a>
 ### Display the running processes of a container
 ```
-POST /containers/{id}/top
+GET /containers/{id}/top
 ```
 
 
@@ -2449,6 +2449,7 @@ is a small subset of the Config struct that holds the configuration.
 |**Cmd**  <br>*optional*|Execution commands and args|< string > array|
 |**Detach**  <br>*optional*|Execute in detach mode|boolean|
 |**DetachKeys**  <br>*optional*|Escape keys for detach|string|
+|**Env**  <br>*optional*|envs for exec command in container|< string > array|
 |**Privileged**  <br>*optional*|Is the container in privileged mode|boolean|
 |**Tty**  <br>*optional*|Attach standard streams to a tty|boolean|
 |**User**  <br>*optional*|User that will run the command|string|
diff --git a/docs/commandline/pouch_exec.md b/docs/commandline/pouch_exec.md
index 5541e89d2..88c6bcf06 100644
--- a/docs/commandline/pouch_exec.md
+++ b/docs/commandline/pouch_exec.md
@@ -23,11 +23,12 @@ PID   USER     TIME  COMMAND
 ### Options
 
 ```
-  -d, --detach        Run the process in the background
-  -h, --help          help for exec
-  -i, --interactive   Open container's STDIN
-  -t, --tty           Allocate a tty device
-  -u, --user string   Username or UID (format: <name|uid>[:<group|gid>])
+  -d, --detach            Run the process in the background
+  -e, --env stringArray   Set environment variables
+  -h, --help              help for exec
+  -i, --interactive       Open container's STDIN
+  -t, --tty               Allocate a tty device
+  -u, --user string       Username or UID (format: <name|uid>[:<group|gid>])
 ```
 
 ### Options inherited from parent commands