diff --git a/47.md b/47.md
index 983d2c9..e4e432c 100644
--- a/47.md
+++ b/47.md
@@ -38,7 +38,7 @@ a plaintext string with the supported commands, space-separated, eg. `pay_invoic
 Both the request and response events SHOULD contain one `p` tag, containing the public key of the **wallet service** if this is a request, and the public key of the **user** if this is a response. The response event SHOULD contain an `e` tag with the id of the request event it is responding to.
 Optionally, a request can have an `expiration` tag that has a unix timestamp in seconds. If the request is received after this timestamp, it should be ignored.
 
-The content of requests and responses is encrypted with [NIP04](https://github.com/nostr-protocol/nips/blob/master/04.md), and is a JSON-RPCish object with a semi-fixed structure:
+The content of requests and responses is encrypted with [NIP04](04.md), and is a JSON-RPCish object with a semi-fixed structure:
 
 Request:
 ```jsonc