diff --git a/README.md b/README.md
index e992a7a4b..930ea1afd 100644
--- a/README.md
+++ b/README.md
@@ -218,6 +218,7 @@ legend:
 * [RFC 6455](https://tools.ietf.org/html/rfc6455) - The WebSocket Protocol
 * [RFC 7159](https://tools.ietf.org/html/rfc7159) - JavaScript Object Notation (JSON)
 * [RFC 7350](https://tools.ietf.org/html/rfc7350) - DTLS as Transport for STUN
+* [RFC 7616](https://tools.ietf.org/html/rfc7616) - HTTP Digest Access Authentication
 * [RFC 7714](https://tools.ietf.org/html/rfc7714) - AES-GCM Authenticated Encryption in SRTP