diff --git a/vendor/github.com/ethereum/go-ethereum/whisper/whisperv5/whisper.go b/vendor/github.com/ethereum/go-ethereum/whisper/whisperv5/whisper.go
index b63197ad8..a49db0906 100644
--- a/vendor/github.com/ethereum/go-ethereum/whisper/whisperv5/whisper.go
+++ b/vendor/github.com/ethereum/go-ethereum/whisper/whisperv5/whisper.go
@@ -568,21 +568,18 @@ func (wh *Whisper) runMessageLoop(p *Peer, rw p2p.MsgReadWriter) error {
 			log.Warn("unxepected status message received", "peer", p.peer.ID())
 		case messagesCode:
 			// decode the contained envelopes
-			var envelopes []*Envelope
-			if err := packet.Decode(&envelopes); err != nil {
+			var envelope Envelope
+			if err := packet.Decode(&envelope); err != nil {
 				log.Warn("failed to decode envelope, peer will be disconnected", "peer", p.peer.ID(), "err", err)
 				return errors.New("invalid envelope")
 			}
-			// inject all envelopes into the internal pool
-			for _, envelope := range envelopes {
-				cached, err := wh.add(envelope)
-				if err != nil {
-					log.Warn("bad envelope received, peer will be disconnected", "peer", p.peer.ID(), "err", err)
-					return errors.New("invalid envelope")
-				}
-				if cached {
-					p.mark(envelope)
-				}
+			cached, err := wh.add(&envelope)
+			if err != nil {
+				log.Warn("bad envelope received, peer will be disconnected", "peer", p.peer.ID(), "err", err)
+				return errors.New("invalid envelope")
+			}
+			if cached {
+				p.mark(&envelope)
 			}
 		case p2pCode:
 			// peer-to-peer message, sent directly to peer bypassing PoW checks, etc.