diff --git a/messaging/messaging.go b/messaging/messaging.go
index dcd412c3..8d27bbe0 100644
--- a/messaging/messaging.go
+++ b/messaging/messaging.go
@@ -620,9 +620,10 @@ type WebpushFCMOptions struct {
 // See https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/CommunicatingwithAPNs.html
 // for more details on supported headers and payload keys.
 type APNSConfig struct {
-	Headers    map[string]string `json:"headers,omitempty"`
-	Payload    *APNSPayload      `json:"payload,omitempty"`
-	FCMOptions *APNSFCMOptions   `json:"fcm_options,omitempty"`
+	Headers           map[string]string `json:"headers,omitempty"`
+	Payload           *APNSPayload      `json:"payload,omitempty"`
+	FCMOptions        *APNSFCMOptions   `json:"fcm_options,omitempty"`
+	LiveActivityToken string            `json:"live_activity_token,omitempty"`
 }
 
 // APNSPayload is the payload that can be included in an APNS message.
@@ -685,6 +686,13 @@ type Aps struct {
 	MutableContent   bool                   `json:"-"`
 	Category         string                 `json:"category,omitempty"`
 	ThreadID         string                 `json:"thread-id,omitempty"`
+	StaleDate        *time.Time             `json:"-"`
+	ContentState     map[string]interface{} `json:"content-state,omitempty"`
+	Timestamp        *time.Time             `json:"-"`
+	Event            LiveActivityEvent      `json:"-"`
+	DismissalDate    *time.Time             `json:"-"`
+	AttributesType   string                 `json:"attributes-type,omitempty"`
+	Attributes       map[string]interface{} `json:"attributes,omitempty"`
 	CustomData       map[string]interface{} `json:"-"`
 }
 
@@ -716,6 +724,32 @@ func (a *Aps) standardFields() map[string]interface{} {
 	if a.ThreadID != "" {
 		m["thread-id"] = a.ThreadID
 	}
+	if a.StaleDate != nil {
+		m["stale-date"] = a.StaleDate.Unix()
+	}
+	if a.ContentState != nil {
+		m["content-state"] = a.ContentState
+	}
+	if a.Timestamp != nil {
+		m["timestamp"] = a.Timestamp.Unix()
+	}
+	if a.Event != liveActivityEventUnspecified {
+		events := map[LiveActivityEvent]string{
+			LiveActivityEventStart:  "start",
+			LiveActivityEventUpdate: "update",
+			LiveActivityEventEnd:    "end",
+		}
+		m["event"] = events[a.Event]
+	}
+	if a.DismissalDate != nil {
+		m["dismissal-date"] = a.DismissalDate.Unix()
+	}
+	if a.AttributesType != "" {
+		m["attributes-type"] = a.AttributesType
+	}
+	if a.Attributes != nil {
+		m["attributes"] = a.Attributes
+	}
 	return m
 }
 
@@ -736,6 +770,10 @@ func (a *Aps) UnmarshalJSON(b []byte) error {
 		SoundObject         *json.RawMessage `json:"sound,omitempty"`
 		ContentAvailableInt int              `json:"content-available,omitempty"`
 		MutableContentInt   int              `json:"mutable-content,omitempty"`
+		StaleDate           *int64           `json:"stale-date,omitempty"`
+		Timestamp           *int64           `json:"timestamp,omitempty"`
+		Event               string           `json:"event,omitempty"`
+		DismissalDate       *int64           `json:"dismissal-date,omitempty"`
 		*apsInternal
 	}{
 		apsInternal: (*apsInternal)(a),
@@ -761,6 +799,30 @@ func (a *Aps) UnmarshalJSON(b []byte) error {
 			}
 		}
 	}
+	if temp.StaleDate != nil {
+		staleDate := time.Unix(*temp.StaleDate, 0)
+		a.StaleDate = &staleDate
+	}
+	if temp.Timestamp != nil {
+		timestamp := time.Unix(*temp.Timestamp, 0)
+		a.Timestamp = &timestamp
+	}
+	if temp.Event != "" {
+		events := map[string]LiveActivityEvent{
+			"start":  LiveActivityEventStart,
+			"update": LiveActivityEventUpdate,
+			"end":    LiveActivityEventEnd,
+		}
+		if event, ok := events[temp.Event]; ok {
+			a.Event = event
+		} else {
+			return fmt.Errorf("unknown event value: %q", temp.Event)
+		}
+	}
+	if temp.DismissalDate != nil {
+		dismissalDate := time.Unix(*temp.DismissalDate, 0)
+		a.DismissalDate = &dismissalDate
+	}
 
 	allFields := make(map[string]interface{})
 	if err := json.Unmarshal(b, &allFields); err != nil {
@@ -775,6 +837,22 @@ func (a *Aps) UnmarshalJSON(b []byte) error {
 	return nil
 }
 
+// LiveActivityEvent represents an event type for Live Activity in push notification payloads.
+type LiveActivityEvent int
+
+const (
+	liveActivityEventUnspecified LiveActivityEvent = iota
+
+	// LiveActivityEventStart starts a Live Activity.
+	LiveActivityEventStart
+
+	// LiveActivityEventUpdate updates a Live Activity.
+	LiveActivityEventUpdate
+
+	// LiveActivityEventEnd ends a Live Activity.
+	LiveActivityEventEnd
+)
+
 // CriticalSound is the sound payload that can be included in an Aps.
 type CriticalSound struct {
 	Critical bool    `json:"-"`
diff --git a/messaging/messaging_test.go b/messaging/messaging_test.go
index dceed542..1e3762a0 100644
--- a/messaging/messaging_test.go
+++ b/messaging/messaging_test.go
@@ -48,6 +48,7 @@ var (
 	badgeZero       = 0
 	timestampMillis = int64(12345)
 	timestamp       = time.Unix(0, 1546304523123*1000000).UTC()
+	unixTime        = time.Unix(1546304, 0)
 )
 
 var validMessages = []struct {
@@ -588,6 +589,49 @@ var validMessages = []struct {
 			"topic": "test-topic",
 		},
 	},
+	{
+		name: "APNSLiveActivity",
+		req: &Message{
+			Token: "test-token",
+			APNS: &APNSConfig{
+				LiveActivityToken: "live-activity-token",
+				Payload: &APNSPayload{
+					Aps: &Aps{
+						StaleDate: &unixTime,
+						ContentState: map[string]interface{}{
+							"s1": "v",
+							"s2": float64(1),
+						},
+						Timestamp:      &unixTime,
+						Event:          LiveActivityEventStart,
+						DismissalDate:  &unixTime,
+						AttributesType: "TestAttributes",
+						Attributes: map[string]interface{}{
+							"a1": "v",
+							"a2": float64(1),
+						},
+					},
+				},
+			},
+		},
+		want: map[string]interface{}{
+			"token": "test-token",
+			"apns": map[string]interface{}{
+				"live_activity_token": "live-activity-token",
+				"payload": map[string]interface{}{
+					"aps": map[string]interface{}{
+						"stale-date":      float64(unixTime.Unix()),
+						"content-state":   map[string]interface{}{"s1": "v", "s2": float64(1)},
+						"timestamp":       float64(unixTime.Unix()),
+						"event":           "start",
+						"dismissal-date":  float64(unixTime.Unix()),
+						"attributes-type": "TestAttributes",
+						"attributes":      map[string]interface{}{"a1": "v", "a2": float64(1)},
+					},
+				},
+			},
+		},
+	},
 	{
 		name: "AndroidNotificationPriorityMin",
 		req: &Message{