diff --git a/bigbluebutton-html5/imports/api/audio-captions/index.js b/bigbluebutton-html5/imports/api/audio-captions/index.js
index c16a82efc8..cf10470261 100644
--- a/bigbluebutton-html5/imports/api/audio-captions/index.js
+++ b/bigbluebutton-html5/imports/api/audio-captions/index.js
@@ -3,7 +3,7 @@ import { Meteor } from 'meteor/meteor';
 const AudioCaptions = new Mongo.Collection('audio-captions');
 
 if (Meteor.isServer) {
-  AudioCaptions._ensureIndex({ meetingId: 1 });
+  AudioCaptions.createIndexAsync({ meetingId: 1 });
 }
 
 export default AudioCaptions;
diff --git a/bigbluebutton-html5/imports/api/audio-captions/server/handlers/transcriptUpdated.js b/bigbluebutton-html5/imports/api/audio-captions/server/handlers/transcriptUpdated.js
index ff868dbf1c..d8e66c6cfc 100644
--- a/bigbluebutton-html5/imports/api/audio-captions/server/handlers/transcriptUpdated.js
+++ b/bigbluebutton-html5/imports/api/audio-captions/server/handlers/transcriptUpdated.js
@@ -1,6 +1,6 @@
 import setTranscript from '/imports/api/audio-captions/server/modifiers/setTranscript';
 
-export default function transcriptUpdated({ header, body }) {
+export default async function transcriptUpdated({ header, body }) {
   const { meetingId } = header;
 
   const {
@@ -8,5 +8,5 @@ export default function transcriptUpdated({ header, body }) {
     transcript,
   } = body;
 
-  setTranscript(meetingId, transcriptId, transcript);
+  await setTranscript(meetingId, transcriptId, transcript);
 }
diff --git a/bigbluebutton-html5/imports/api/audio-captions/server/modifiers/clearAudioCaptions.js b/bigbluebutton-html5/imports/api/audio-captions/server/modifiers/clearAudioCaptions.js
index 06e8164f1b..cd97c33f14 100644
--- a/bigbluebutton-html5/imports/api/audio-captions/server/modifiers/clearAudioCaptions.js
+++ b/bigbluebutton-html5/imports/api/audio-captions/server/modifiers/clearAudioCaptions.js
@@ -1,10 +1,10 @@
 import AudioCaptions from '/imports/api/audio-captions';
 import Logger from '/imports/startup/server/logger';
 
-export default function clearAudioCaptions(meetingId) {
+export default async function clearAudioCaptions(meetingId) {
   if (meetingId) {
     try {
-      const numberAffected = AudioCaptions.remove({ meetingId });
+      const numberAffected = await AudioCaptions.removeAsync({ meetingId });
 
       if (numberAffected) {
         Logger.info(`Cleared AudioCaptions (${meetingId})`);
@@ -14,7 +14,7 @@ export default function clearAudioCaptions(meetingId) {
     }
   } else {
     try {
-      const numberAffected = AudioCaptions.remove({});
+      const numberAffected = await AudioCaptions.removeAsync({});
 
       if (numberAffected) {
         Logger.info('Cleared AudioCaptions (all)');
diff --git a/bigbluebutton-html5/imports/api/audio-captions/server/modifiers/setTranscript.js b/bigbluebutton-html5/imports/api/audio-captions/server/modifiers/setTranscript.js
index 8b641629ee..d5ef7b7973 100644
--- a/bigbluebutton-html5/imports/api/audio-captions/server/modifiers/setTranscript.js
+++ b/bigbluebutton-html5/imports/api/audio-captions/server/modifiers/setTranscript.js
@@ -2,7 +2,7 @@ import { check } from 'meteor/check';
 import AudioCaptions from '/imports/api/audio-captions';
 import Logger from '/imports/startup/server/logger';
 
-export default function setTranscript(meetingId, transcriptId, transcript) {
+export default async function setTranscript(meetingId, transcriptId, transcript) {
   try {
     check(meetingId, String);
     check(transcriptId, String);
@@ -17,7 +17,7 @@ export default function setTranscript(meetingId, transcriptId, transcript) {
       },
     };
 
-    const numberAffected = AudioCaptions.upsert(selector, modifier);
+    const numberAffected = await AudioCaptions.upsertAsync(selector, modifier);
 
     if (numberAffected) {
       Logger.debug(`Set transcriptId=${transcriptId} transcript=${transcript} meeting=${meetingId}`);
diff --git a/bigbluebutton-html5/imports/api/audio-captions/server/publishers.js b/bigbluebutton-html5/imports/api/audio-captions/server/publishers.js
index 25a64c79c0..17d4632fea 100644
--- a/bigbluebutton-html5/imports/api/audio-captions/server/publishers.js
+++ b/bigbluebutton-html5/imports/api/audio-captions/server/publishers.js
@@ -3,8 +3,9 @@ import { Meteor } from 'meteor/meteor';
 import Logger from '/imports/startup/server/logger';
 import AuthTokenValidation, { ValidationStates } from '/imports/api/auth-token-validation';
 
-function audioCaptions() {
-  const tokenValidation = AuthTokenValidation.findOne({ connectionId: this.connection.id });
+async function audioCaptions() {
+  const tokenValidation = await AuthTokenValidation
+    .findOneAsync({ connectionId: this.connection.id });
 
   if (!tokenValidation || tokenValidation.validationStatus !== ValidationStates.VALIDATED) {
     Logger.warn(`Publishing AudioCaptions was requested by unauth connection ${this.connection.id}`);