diff --git a/index.md b/index.md
index e16f9d8..88f4b54 100644
--- a/index.md
+++ b/index.md
@@ -79,6 +79,7 @@ Setup Authelia authentication and authorization server.
   * [authelia_storage_db_port](#authelia_storage_db_port)
   * [authelia_storage_db_sslmode](#authelia_storage_db_sslmode)
   * [authelia_storage_db_username](#authelia_storage_db_username)
+  * [authelia_storage_encryption_key](#authelia_storage_encryption_key)
   * [authelia_theme](#authelia_theme)
   * [authelia_totp_issuer](#authelia_totp_issuer)
   * [authelia_totp_period](#authelia_totp_period)
@@ -676,6 +677,16 @@ authelia_storage_db_sslmode: disable
 authelia_storage_db_username: authelia
 ```
 
+### authelia_storage_encryption_key
+
+The encryption key used to encrypt data in the database. The minimum length of this key is 20 characters, however we generally recommend above 64 characters. For security reasons, it's highly recommended to create a unique key.
+
+#### Default value
+
+```YAML
+authelia_storage_encryption_key: bp33fh3cTswzdMndXrrVMrLd
+```
+
 ### authelia_theme
 
 #### Default value
@@ -729,7 +740,7 @@ authelia_user_home: /home/{{ authelia_user }}
 #### Default value
 
 ```YAML
-authelia_version: 4.30.1
+authelia_version: 4.33.1
 ```
 
 ## Dependencies