diff --git a/envoy/COMMIT b/envoy/COMMIT
index 7f7d41cc6d..4bd70da290 100644
--- a/envoy/COMMIT
+++ b/envoy/COMMIT
@@ -1 +1 @@
-3efdbd7261b9f29bfdd5d57521c769fb8b43bdc9
+473cb074a4cb874d952b8186d6ad5a7f0dacab69
diff --git a/envoy/config/core/v3/protocol.pb.go b/envoy/config/core/v3/protocol.pb.go
index aee8647bcc..5bd3ca5b1f 100755
--- a/envoy/config/core/v3/protocol.pb.go
+++ b/envoy/config/core/v3/protocol.pb.go
@@ -232,9 +232,11 @@ type QuicProtocolOptions struct {
 	// Probes the peer at the configured interval to solicit traffic, i.e. ACK or PATH_RESPONSE, from the peer to push back connection idle timeout.
 	// If absent, use the default keepalive behavior of which a client connection sends PINGs every 15s, and a server connection doesn't do anything.
 	ConnectionKeepalive *QuicKeepAliveSettings `protobuf:"bytes,5,opt,name=connection_keepalive,json=connectionKeepalive,proto3" json:"connection_keepalive,omitempty"`
-	// An array of QUIC connection options represented in a serialized string, separated by commas.
+	// A comma-separated list of strings representing QUIC connection options defined in
+	// `QUICHE <https://github.com/google/quiche/blob/main/quiche/quic/core/crypto/crypto_protocol.h>` and to be sent by upstream connections.
 	ConnectionOptions string `protobuf:"bytes,6,opt,name=connection_options,json=connectionOptions,proto3" json:"connection_options,omitempty"`
-	// An array of QUIC client connection options represented in a serialized string, separated by commas.
+	// A comma-separated list of strings representing QUIC client connection options defined in
+	// `QUICHE <https://github.com/google/quiche/blob/main/quiche/quic/core/crypto/crypto_protocol.h>` and to be sent by upstream connections.
 	ClientConnectionOptions string `protobuf:"bytes,7,opt,name=client_connection_options,json=clientConnectionOptions,proto3" json:"client_connection_options,omitempty"`
 }