diff --git a/deploy/docker/README.md b/deploy/docker/README.md
index 6044291cc..51692bc07 100644
--- a/deploy/docker/README.md
+++ b/deploy/docker/README.md
@@ -74,14 +74,14 @@ These environment variables will ignore for configuration file.
 
 #### EMQ X Configuration
 
-> NOTE: All EMQ X Configuration in [etc/emqx.conf](https://github.com/emqx/emqx/blob/master/etc/emqx.conf) could config by environment. The following list is just an example, not a complete configuration.
+> NOTE: All EMQ X Configuration in [etc/emqx.conf](https://github.com/emqx/emqx/blob/main-v4.3/etc/emqx.conf) could config by environment. The following list is just an example, not a complete configuration.
 
 | Options                    | Default            | Mapped                    | Description                           |
 | ---------------------------| ------------------ | ------------------------- | ------------------------------------- |
 | EMQX_NAME                  | container name     | none                      | emqx node short name                  |
 | EMQX_HOST                  | container IP       | none                      | emqx node host, IP or FQDN            |
 
-The list is incomplete and may changed with [etc/emqx.conf](https://github.com/emqx/emqx/blob/master/etc/emqx.conf) and plugin configuration files. But the mapping rule is similar.
+The list is incomplete and may changed with [etc/emqx.conf](https://github.com/emqx/emqx/blob/main-v4.3/etc/emqx.conf) and plugin configuration files. But the mapping rule is similar.
 
 If set ``EMQX_NAME`` and ``EMQX_HOST``, and unset ``EMQX_NODE_NAME``, ``EMQX_NODE_NAME=$EMQX_NAME@$EMQX_HOST``.