diff --git a/draft-ietf-gnap-core-protocol.md b/draft-ietf-gnap-core-protocol.md
index f36160b..2ed824a 100644
--- a/draft-ietf-gnap-core-protocol.md
+++ b/draft-ietf-gnap-core-protocol.md
@@ -30,7 +30,6 @@ normative:
     RFC2397:
     RFC3339:
     RFC3986:
-    RFC4107:
     RFC4648:
     RFC5646:
     RFC7468: