diff --git a/README.md b/README.md
index 3d2b239..a38e56d 100644
--- a/README.md
+++ b/README.md
@@ -82,7 +82,7 @@ services:
       # The password used to log in to the voucher portal Web UI
       AUTH_INTERNAL_PASSWORD: '0000'
       # The Bearer token used for the API
-      AUTH_TOKEN: '00000000-0000-0000-0000-000000000000'
+      AUTH_INTERNAL_BEARER_TOKEN: '00000000-0000-0000-0000-000000000000'
       # Toggle to enable/disable OIDC authentication
       AUTH_OIDC_ENABLED: 'false'
       # OIDC issuer base url provided by oauth provider. Example: https://auth.example.com/.well-known/openid-configuration
@@ -230,7 +230,7 @@ the different endpoints available in the API:
 ```
 
    > This endpoint is protected by a security mechanism. To access it, users need to include a bearer token in the
-   request authorization header. The token must match the value of the `AUTH_TOKEN` environment variable. Without
+   request authorization header. The token must match the value of the `AUTH_INTERNAL_BEARER_TOKEN` environment variable. Without
    this token, access to the endpoint will be denied.
 
 4. **`/api/vouchers`**
@@ -269,7 +269,7 @@ the different endpoints available in the API:
 ```
 
 > This endpoint is protected by a security mechanism. To access it, users need to include a bearer token in the
-request authorization header. The token must match the value of the `AUTH_TOKEN` environment variable. Without
+request authorization header. The token must match the value of the `AUTH_INTERNAL_BEARER_TOKEN` environment variable. Without
 this token, access to the endpoint will be denied.
 
 ## Authentication
@@ -509,6 +509,10 @@ When upgrading from 3.x to 4.x, the following changes need to be made:
     - **`AUTH_PASSWORD`** has been renamed to **`AUTH_INTERNAL_PASSWORD`**.
     - Update your environment variable to use `AUTH_INTERNAL_PASSWORD` if you rely on internal authentication.
 
+5. **Bearer Token Variable Rename**
+    - **`AUTH_TOKEN`** has been replaced by **`AUTH_INTERNAL_BEARER_TOKEN`**.
+    - Update your environment variable to use `AUTH_INTERNAL_BEARER_TOKEN` for api bearer token authentication.
+
 ### Migration from 2.x to 3.x
 
 When upgrading from 2.x to 3.x, the following changes need to be made:
diff --git a/docker-compose.yml b/docker-compose.yml
index 26e8ad9..128a671 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -14,7 +14,7 @@ services:
       UNIFI_SSID_PASSWORD: ''
       AUTH_INTERNAL_ENABLED: 'true'
       AUTH_INTERNAL_PASSWORD: '0000'
-      AUTH_TOKEN: '00000000-0000-0000-0000-000000000000'
+      AUTH_INTERNAL_BEARER_TOKEN: '00000000-0000-0000-0000-000000000000'
       AUTH_OIDC_ENABLED: 'false'
       AUTH_OIDC_ISSUER_BASE_URL: ''
       AUTH_OIDC_APP_BASE_URL: ''
diff --git a/modules/variables.js b/modules/variables.js
index 00d8d3f..384d31b 100644
--- a/modules/variables.js
+++ b/modules/variables.js
@@ -20,7 +20,7 @@ module.exports = {
     serviceApi: config('service_api') || (process.env.SERVICE_API === 'true') || false,
     authInternalEnabled: config('auth_internal_enabled') !== null ? config('auth_internal_enabled') : process.env.AUTH_INTERNAL_ENABLED ? process.env.AUTH_INTERNAL_ENABLED !== 'false' : true,
     authInternalPassword: config('auth_internal_password') || process.env.AUTH_INTERNAL_PASSWORD || '0000',
-    authToken: config('auth_token') || process.env.AUTH_TOKEN || '00000000-0000-0000-0000-000000000000',
+    authToken: config('auth_internal_bearer_token') || process.env.AUTH_INTERNAL_BEARER_TOKEN || '00000000-0000-0000-0000-000000000000',
     authOidcEnabled: config('auth_oidc_enabled') || (process.env.AUTH_OIDC_ENABLED === 'true') || false,
     authOidcIssuerBaseUrl: config('auth_oidc_issuer_base_url') || process.env.AUTH_OIDC_ISSUER_BASE_URL || '',
     authOidcAppBaseUrl: config('auth_oidc_app_base_url') || process.env.AUTH_OIDC_APP_BASE_URL || '',