diff --git a/docs/deploy.md b/docs/deploy.md
index 4cda2f1d32..95fcf142a8 100644
--- a/docs/deploy.md
+++ b/docs/deploy.md
@@ -71,13 +71,12 @@ conf:
   listen:
     host: 127.0.0.1
     port: 8080
-  dag_lib_path: ''
   etcd:
     endpoints:
       - 127.0.0.1:2379
 authentication:
   secret: secret
-  expireTime: 3600
+  expire_time: 3600
   users:
     - username: admin
       password: admin
diff --git a/docs/deploy.zh-CN.md b/docs/deploy.zh-CN.md
index 98415fbf36..e0a8ccefb9 100644
--- a/docs/deploy.zh-CN.md
+++ b/docs/deploy.zh-CN.md
@@ -73,13 +73,12 @@ conf:
   listen:
     host: 127.0.0.1
     port: 8080
-  dag_lib_path: ''
   etcd:
     endpoints:
       - 127.0.0.1:2379
 authentication:
   secret: secret
-  expireTime: 3600
+  expire_time: 3600
   users:
     - username: admin
       password: admin
diff --git a/docs/develop.md b/docs/develop.md
index 7df96e326a..9e83d25e21 100644
--- a/docs/develop.md
+++ b/docs/develop.md
@@ -59,13 +59,12 @@ conf:
   listen:
     host: 127.0.0.1
     port: 8080
-  dag_lib_path: ''
   etcd:
     endpoints:
       - 127.0.0.1:2379
 authentication:
   secret: secret
-  expireTime: 3600
+  expire_time: 3600
   users:
     - username: admin
       password: admin
diff --git a/docs/develop.zh-CN.md b/docs/develop.zh-CN.md
index c1d10c6b5b..852c607448 100644
--- a/docs/develop.zh-CN.md
+++ b/docs/develop.zh-CN.md
@@ -61,13 +61,12 @@ conf:
   listen:
     host: 127.0.0.1
     port: 8080
-  dag_lib_path: ''
   etcd:
     endpoints:
       - 127.0.0.1:2379
 authentication:
   secret: secret
-  expireTime: 3600
+  expire_time: 3600
   users:
     - username: admin
       password: admin
diff --git a/docs/examples/docker-conf-example.yaml b/docs/examples/docker-conf-example.yaml
index 88b513cad5..47c801628e 100644
--- a/docs/examples/docker-conf-example.yaml
+++ b/docs/examples/docker-conf-example.yaml
@@ -28,7 +28,7 @@ conf:
       - 127.0.0.1:2379
 authentication:
   secret: secret
-  expireTime: 3600
+  expire_time: 3600
   users:
     - username: admin
       password: admin