diff --git a/README.md b/README.md
index 8def015..968122c 100644
--- a/README.md
+++ b/README.md
@@ -53,16 +53,7 @@ Health check endpoint with version
 #### `POST /register`
 Register a new peer and receive credentials (peerId + secret)
 
-**Request (optional):**
-```json
-{
-  "peerId": "my-custom-peer-id"
-}
-```
-
-**Notes:**
-- `peerId` (optional): Custom peer ID (1-128 characters). If not provided, a random ID will be generated.
-- Returns 409 Conflict if the custom peer ID is already in use.
+Generates a cryptographically random 128-bit peer ID.
 
 **Response:**
 ```json