diff --git a/ssl/internal.h b/ssl/internal.h
index e612f6d..14c871a 100644
--- a/ssl/internal.h
+++ b/ssl/internal.h
@@ -2462,11 +2462,10 @@
   bool shed_handshake_config : 1;
 };
 
-// From draft-ietf-tls-tls13-18, used in determining PSK modes.
+// From RFC 8446, used in determining PSK modes.
 #define SSL_PSK_DHE_KE 0x1
 
-// From draft-ietf-tls-tls13-16, used in determining whether to respond with a
-// KeyUpdate.
+// From RFC 8446, used in determining whether to respond with a KeyUpdate.
 #define SSL_KEY_UPDATE_NOT_REQUESTED 0
 #define SSL_KEY_UPDATE_REQUESTED 1