diff --git a/mqtt_client.c b/mqtt_client.c
index 0cbb427..14d91ea 100644
--- a/mqtt_client.c
+++ b/mqtt_client.c
@@ -1244,7 +1244,6 @@ static esp_err_t mqtt_process_receive(esp_mqtt_client_handle_t client)
     case MQTT_MSG_TYPE_PUBACK:
         if (is_valid_mqtt_msg(client, MQTT_MSG_TYPE_PUBLISH, msg_id)) {
             ESP_LOGD(TAG, "received MQTT_MSG_TYPE_PUBACK, finish QoS1 publish");
-            outbox_set_pending(client->outbox, msg_id, CONFIRMED);
             client->event.event_id = MQTT_EVENT_PUBLISHED;
             esp_mqtt_dispatch_event_with_msgid(client);
         }
@@ -1274,7 +1273,6 @@ static esp_err_t mqtt_process_receive(esp_mqtt_client_handle_t client)
         ESP_LOGD(TAG, "received MQTT_MSG_TYPE_PUBCOMP");
         if (is_valid_mqtt_msg(client, MQTT_MSG_TYPE_PUBLISH, msg_id)) {
             ESP_LOGD(TAG, "Receive MQTT_MSG_TYPE_PUBCOMP, finish QoS2 publish");
-            outbox_set_pending(client->outbox, msg_id, CONFIRMED);
             client->event.event_id = MQTT_EVENT_PUBLISHED;
             esp_mqtt_dispatch_event_with_msgid(client);
         }