diff --git a/vendor/github.com/jhump/protoreflect/desc/descriptor.go b/vendor/github.com/jhump/protoreflect/desc/descriptor.go
index ab235a3..42f0f8e 100644
--- a/vendor/github.com/jhump/protoreflect/desc/descriptor.go
+++ b/vendor/github.com/jhump/protoreflect/desc/descriptor.go
@@ -6,6 +6,7 @@
 	"sort"
 	"strconv"
 	"strings"
+	"unicode"
 	"unicode/utf8"
 
 	"github.com/golang/protobuf/proto"
@@ -191,7 +192,19 @@
 	if symbol[0] == '.' {
 		symbol = symbol[1:]
 	}
-	return fd.symbols[symbol]
+	if ret := fd.symbols[symbol]; ret != nil {
+		return ret
+	}
+
+	// allow accessing symbols through public imports, too
+	for _, dep := range fd.GetPublicDependencies() {
+		if ret := dep.FindSymbol(symbol); ret != nil {
+			return ret
+		}
+	}
+
+	// not found
+	return nil
 }
 
 // FindMessage finds the message with the given fully-qualified name. If no
@@ -891,10 +904,32 @@
 // GetJSONName returns the name of the field as referenced in the message's JSON
 // format.
 func (fd *FieldDescriptor) GetJSONName() string {
-	if jsonName := fd.proto.GetJsonName(); jsonName != "" {
-		return jsonName
+	if jsonName := fd.proto.JsonName; jsonName != nil {
+		// if json name is present, use its value
+		return *jsonName
 	}
-	return fd.proto.GetName()
+	// otherwise, compute the proper JSON name from the field name
+	return jsonCamelCase(fd.proto.GetName())
+}
+
+func jsonCamelCase(s string) string {
+	// This mirrors the implementation in protoc/C++ runtime and in the Java runtime:
+	//   https://github.com/protocolbuffers/protobuf/blob/a104dffcb6b1958a424f5fa6f9e6bdc0ab9b6f9e/src/google/protobuf/descriptor.cc#L276
+	//   https://github.com/protocolbuffers/protobuf/blob/a1c886834425abb64a966231dd2c9dd84fb289b3/java/core/src/main/java/com/google/protobuf/Descriptors.java#L1286
+	var buf bytes.Buffer
+	prevWasUnderscore := false
+	for _, r := range s {
+		if r == '_' {
+			prevWasUnderscore = true
+			continue
+		}
+		if prevWasUnderscore {
+			r = unicode.ToUpper(r)
+			prevWasUnderscore = false
+		}
+		buf.WriteRune(r)
+	}
+	return buf.String()
 }
 
 // GetFullyQualifiedJSONName returns the JSON format name (same as GetJSONName),
@@ -959,6 +994,24 @@
 	return fd.proto.GetLabel() == dpb.FieldDescriptorProto_LABEL_REPEATED
 }
 
+// IsProto3Optional returns true if this field has an explicit "optional" label
+// and is in a "proto3" syntax file. Such fields, if they are normal fields (not
+// extensions), will be nested in synthetic oneofs that contain only the single
+// field.
+func (fd *FieldDescriptor) IsProto3Optional() bool {
+	return internal.GetProto3Optional(fd.proto)
+}
+
+// HasPresence returns true if this field can distinguish when a value is
+// present or not. Scalar fields in "proto3" syntax files, for example, return
+// false since absent values are indistinguishable from zero values.
+func (fd *FieldDescriptor) HasPresence() bool {
+	if !fd.file.isProto3 {
+		return true
+	}
+	return fd.msgType != nil || fd.oneOf != nil
+}
+
 // IsMap returns true if this is a map field. If so, it will have the "repeated"
 // label its type will be a message that represents a map entry. The map entry
 // message will have exactly two fields: tag #1 is the key and tag #2 is the value.
@@ -1582,6 +1635,10 @@
 	return od.choices
 }
 
+func (od *OneOfDescriptor) IsSynthetic() bool {
+	return len(od.choices) == 1 && od.choices[0].IsProto3Optional()
+}
+
 // scope represents a lexical scope in a proto file in which messages and enums
 // can be declared.
 type scope func(string) Descriptor
diff --git a/vendor/github.com/jhump/protoreflect/desc/descriptor_no_unsafe.go b/vendor/github.com/jhump/protoreflect/desc/descriptor_no_unsafe.go
index cd7348e..25d619a 100644
--- a/vendor/github.com/jhump/protoreflect/desc/descriptor_no_unsafe.go
+++ b/vendor/github.com/jhump/protoreflect/desc/descriptor_no_unsafe.go
@@ -1,4 +1,6 @@
-//+build appengine gopherjs purego
+//go:build appengine || gopherjs || purego
+// +build appengine gopherjs purego
+
 // NB: other environments where unsafe is unappropriate should use "purego" build tag
 // https://github.com/golang/go/issues/23172
 
@@ -13,12 +15,9 @@
 func (md *MessageDescriptor) FindFieldByJSONName(jsonName string) *FieldDescriptor {
 	// NB: With allowed use of unsafe, we use it to atomically define an index
 	// via atomic.LoadPointer/atomic.StorePointer. Without it, we skip the index
-	// and do an linear scan of fields each time.
+	// and must do a linear scan of fields each time.
 	for _, f := range md.fields {
-		jn := f.proto.GetJsonName()
-		if jn == "" {
-			jn = f.proto.GetName()
-		}
+		jn := f.GetJSONName()
 		if jn == jsonName {
 			return f
 		}
diff --git a/vendor/github.com/jhump/protoreflect/desc/descriptor_unsafe.go b/vendor/github.com/jhump/protoreflect/desc/descriptor_unsafe.go
index 19b808d..691f0d8 100644
--- a/vendor/github.com/jhump/protoreflect/desc/descriptor_unsafe.go
+++ b/vendor/github.com/jhump/protoreflect/desc/descriptor_unsafe.go
@@ -1,4 +1,6 @@
-//+build !appengine,!gopherjs,!purego
+//go:build !appengine && !gopherjs && !purego
+// +build !appengine,!gopherjs,!purego
+
 // NB: other environments where unsafe is unappropriate should use "purego" build tag
 // https://github.com/golang/go/issues/23172
 
@@ -34,10 +36,7 @@
 		// slow path: compute the index
 		index = map[string]*FieldDescriptor{}
 		for _, f := range md.fields {
-			jn := f.proto.GetJsonName()
-			if jn == "" {
-				jn = f.proto.GetName()
-			}
+			jn := f.GetJSONName()
 			index[jn] = f
 		}
 		atomic.StorePointer(addrOfJsonNames, *(*unsafe.Pointer)(unsafe.Pointer(&index)))
diff --git a/vendor/github.com/jhump/protoreflect/desc/internal/proto3_optional.go b/vendor/github.com/jhump/protoreflect/desc/internal/proto3_optional.go
new file mode 100644
index 0000000..9aa4a3e
--- /dev/null
+++ b/vendor/github.com/jhump/protoreflect/desc/internal/proto3_optional.go
@@ -0,0 +1,120 @@
+package internal
+
+import (
+	"github.com/golang/protobuf/proto"
+	dpb "github.com/golang/protobuf/protoc-gen-go/descriptor"
+	"github.com/jhump/protoreflect/internal/codec"
+	"reflect"
+	"strings"
+
+	"github.com/jhump/protoreflect/internal"
+)
+
+// NB: We use reflection or unknown fields in case we are linked against an older
+// version of the proto runtime which does not know about the proto3_optional field.
+// We don't require linking with newer version (which would greatly simplify this)
+// because that means pulling in v1.4+ of the protobuf runtime, which has some
+// compatibility issues. (We'll be nice to users and not require they upgrade to
+// that latest runtime to upgrade to newer protoreflect.)
+
+func GetProto3Optional(fd *dpb.FieldDescriptorProto) bool {
+	type newerFieldDesc interface {
+		GetProto3Optional() bool
+	}
+	var pm proto.Message = fd
+	if fd, ok := pm.(newerFieldDesc); ok {
+		return fd.GetProto3Optional()
+	}
+
+	// Field does not exist, so we have to examine unknown fields
+	// (we just silently bail if we have problems parsing them)
+	unk := internal.GetUnrecognized(pm)
+	buf := codec.NewBuffer(unk)
+	for {
+		tag, wt, err := buf.DecodeTagAndWireType()
+		if err != nil {
+			return false
+		}
+		if tag == Field_proto3OptionalTag && wt == proto.WireVarint {
+			v, _ := buf.DecodeVarint()
+			return v != 0
+		}
+		if err := buf.SkipField(wt); err != nil {
+			return false
+		}
+	}
+}
+
+func SetProto3Optional(fd *dpb.FieldDescriptorProto) {
+	rv := reflect.ValueOf(fd).Elem()
+	fld := rv.FieldByName("Proto3Optional")
+	if fld.IsValid() {
+		fld.Set(reflect.ValueOf(proto.Bool(true)))
+		return
+	}
+
+	// Field does not exist, so we have to store as unknown field.
+	var buf codec.Buffer
+	if err := buf.EncodeTagAndWireType(Field_proto3OptionalTag, proto.WireVarint); err != nil {
+		// TODO: panic? log?
+		return
+	}
+	if err := buf.EncodeVarint(1); err != nil {
+		// TODO: panic? log?
+		return
+	}
+	internal.SetUnrecognized(fd, buf.Bytes())
+}
+
+// ProcessProto3OptionalFields adds synthetic oneofs to the given message descriptor
+// for each proto3 optional field. It also updates the fields to have the correct
+// oneof index reference.
+func ProcessProto3OptionalFields(msgd *dpb.DescriptorProto) {
+	var allNames map[string]struct{}
+	for _, fd := range msgd.Field {
+		if GetProto3Optional(fd) {
+			// lazy init the set of all names
+			if allNames == nil {
+				allNames = map[string]struct{}{}
+				for _, fd := range msgd.Field {
+					allNames[fd.GetName()] = struct{}{}
+				}
+				for _, fd := range msgd.Extension {
+					allNames[fd.GetName()] = struct{}{}
+				}
+				for _, ed := range msgd.EnumType {
+					allNames[ed.GetName()] = struct{}{}
+					for _, evd := range ed.Value {
+						allNames[evd.GetName()] = struct{}{}
+					}
+				}
+				for _, fd := range msgd.NestedType {
+					allNames[fd.GetName()] = struct{}{}
+				}
+				for _, n := range msgd.ReservedName {
+					allNames[n] = struct{}{}
+				}
+			}
+
+			// Compute a name for the synthetic oneof. This uses the same
+			// algorithm as used in protoc:
+			//  https://github.com/protocolbuffers/protobuf/blob/74ad62759e0a9b5a21094f3fb9bb4ebfaa0d1ab8/src/google/protobuf/compiler/parser.cc#L785-L803
+			ooName := fd.GetName()
+			if !strings.HasPrefix(ooName, "_") {
+				ooName = "_" + ooName
+			}
+			for {
+				_, ok := allNames[ooName]
+				if !ok {
+					// found a unique name
+					allNames[ooName] = struct{}{}
+					break
+				}
+				ooName = "X" + ooName
+			}
+
+			fd.OneofIndex = proto.Int32(int32(len(msgd.OneofDecl)))
+			msgd.OneofDecl = append(msgd.OneofDecl, &dpb.OneofDescriptorProto{Name: proto.String(ooName)})
+		}
+	}
+}
diff --git a/vendor/github.com/jhump/protoreflect/desc/internal/util.go b/vendor/github.com/jhump/protoreflect/desc/internal/util.go
index 139c9cd..71855bf 100644
--- a/vendor/github.com/jhump/protoreflect/desc/internal/util.go
+++ b/vendor/github.com/jhump/protoreflect/desc/internal/util.go
@@ -1,13 +1,22 @@
 package internal
 
 import (
+	"math"
 	"unicode"
 	"unicode/utf8"
 )
 
 const (
-	// MaxTag is the maximum allowed tag number for a field.
-	MaxTag = 536870911 // 2^29 - 1
+	// MaxNormalTag is the maximum allowed tag number for a field in a normal message.
+	MaxNormalTag = 536870911 // 2^29 - 1
+
+	// MaxMessageSetTag is the maximum allowed tag number of a field in a message that
+	// uses the message set wire format.
+	MaxMessageSetTag = math.MaxInt32 - 1
+
+	// MaxTag is the maximum allowed tag number. (It is the same as MaxMessageSetTag
+	// since that is the absolute highest allowed.)
+	MaxTag = MaxMessageSetTag
 
 	// SpecialReservedStart is the first tag in a range that is reserved and not
 	// allowed for use in message definitions.
@@ -117,6 +126,9 @@
 	// Field_jsonNameTag is the tag number of the JSON name element in a field
 	// descriptor proto.
 	Field_jsonNameTag = 10
+	// Field_proto3OptionalTag is the tag number of the proto3_optional element
+	// in a descriptor proto.
+	Field_proto3OptionalTag = 17
 	// OneOf_nameTag is the tag number of the name element in a one-of
 	// descriptor proto.
 	OneOf_nameTag = 1
@@ -268,3 +280,12 @@
 
 	return prefixes
 }
+
+// GetMaxTag returns the max tag number allowed, based on whether a message uses
+// message set wire format or not.
+func GetMaxTag(isMessageSet bool) int32 {
+	if isMessageSet {
+		return MaxMessageSetTag
+	}
+	return MaxNormalTag
+}