diff --git a/ech.go b/ech.go
index 29812b6..459803d 100644
--- a/ech.go
+++ b/ech.go
@@ -119,7 +119,7 @@ func parseECHConfig(enc []byte) (skip bool, ec EchConfig, err error) {
 	return false, ec, nil
 }
 
-// parseECHConfigList parses a draft-ietf-tls-esni-18 ECHConfigList, returning a
+// parseECHConfigList parses a RFC 9849 ECHConfigList, returning a
 // slice of parsed ECHConfigs, in the same order they were parsed, or an error
 // if the list is malformed.
 func parseECHConfigList(data []byte) ([]EchConfig, error) {