diff --git a/config/auth.php b/config/auth.php
index ef712eb..f868e30 100644
--- a/config/auth.php
+++ b/config/auth.php
@@ -5,7 +5,6 @@
 	'driver'       => 'file',
 	'hash_method'  => 'sha256',
 	'hash_key'     => NULL,
-	'lifetime'     => 1209600,
 	'session_type' => Session::$default,
 	'session_key'  => 'auth_user',
 
diff --git a/guide/auth/config.md b/guide/auth/config.md
index af97acb..e411fa0 100644
--- a/guide/auth/config.md
+++ b/guide/auth/config.md
@@ -9,6 +9,5 @@ Name | Type | Default | Description
 driver | `string` | file | The name of the auth driver to use.
 hash_method | `string` | sha256 | The hashing function to use on the passwords.
 hash_key | `string` | NULL | The key to use when hashing the password.
-lifetime | `int` | 1209600 | The time (_in seconds_) that the user's session is valid.
 session_type | `string` | [Session::$default] | The type of session to use when storing the auth user.
 session_key | `string` | auth_user | The name of the session variable used to save the user.