diff --git a/README.md b/README.md
index e23b72d..b4171ff 100644
--- a/README.md
+++ b/README.md
@@ -66,7 +66,7 @@ The following options are available:
 
 ## Requirements
 In order to get the correct data using the API, several requirements must be fulfilled:
-1. A [Cisco API ID and secret](https://apiconsole.cisco.com/) must have been created and configured inside `configuration.py`
+1. A [Cisco API ID and secret](https://apiconsole.cisco.com/) (with access to the APIs "EOX V5 API" and "Serial Number to Information API Version 2") must have been created and configured inside `configuration.py`
 2. A manufacturer called `Cisco` must have been configured inside NetBox. If your manufacturer is named differently, change if inside `configuration.py`:
 ```
 PLUGINS_CONFIG = {
@@ -89,4 +89,4 @@ PLUGINS_CONFIG = {
 6. The device template will be exteneded to display device and device type information. Information will be shown, if a `CiscoDeviceSupport` object for that device exists. Additionally device type information will be shown, if a `CiscoDeviceTypeSupport` object for the parent device type exists.
 7. Coloring: Expired timestamps will be colored red, timestamps which will expire in the next calendar year will be colored yellow for planning / forecast reasons.
 ## Screenshots
-![Screenshot](screenshot.png)
\ No newline at end of file
+![Screenshot](screenshot.png)