diff --git a/docs/companion.md b/docs/companion.md
index 15ca91cacd..c8dfd0fcb6 100644
--- a/docs/companion.md
+++ b/docs/companion.md
@@ -381,11 +381,12 @@ in the future, we plan and changing the default to `companion:` and possibly
 remove this option. This is a standalone-only option. See also
 `COMPANION_REDIS_PUBSUB_SCOPE`.
 
-#### `redisOptions`
+#### `redisOptions` `COMPANION_REDIS_OPTIONS`
 
 An object of
-[options supported by redis client](https://www.npmjs.com/package/redis#options-object-properties).
-This option can be used in place of `redisUrl`.
+[options supported by the `ioredis` client](https://github.com/redis/ioredis).
+See also
+[`RedisOptions`](https://github.com/redis/ioredis/blob/af832752040e616daf51621681bcb40cab965a9b/lib/redis/RedisOptions.ts#L8).
 
 #### `redisPubSubScope` `COMPANION_REDIS_PUBSUB_SCOPE`
 
diff --git a/e2e/mock-server.mjs b/e2e/mock-server.mjs
index 6a62a7fe84..02d84b77da 100644
--- a/e2e/mock-server.mjs
+++ b/e2e/mock-server.mjs
@@ -23,7 +23,7 @@ const requestListener = (req, res) => {
 export default function startMockServer (host, port) {
   const server = http.createServer(requestListener)
   server.listen(port, host, () => {
-    console.log(`Server is running on http://${host}:${port}`)
+    console.log(`Mock server is running on http://${host}:${port}`)
   })
 }
 
diff --git a/packages/@uppy/companion/package.json b/packages/@uppy/companion/package.json
index 901f2b1e6b..d2f3d4a16a 100644
--- a/packages/@uppy/companion/package.json
+++ b/packages/@uppy/companion/package.json
@@ -50,6 +50,7 @@
     "got": "^13.0.0",
     "grant": "5.4.22",
     "helmet": "^4.6.0",
+    "ioredis": "^5.3.2",
     "ipaddr.js": "^2.0.1",
     "jsonwebtoken": "9.0.2",
     "lodash": "^4.17.21",
@@ -60,7 +61,6 @@
     "ms": "2.1.3",
     "node-schedule": "2.1.1",
     "prom-client": "14.0.1",
-    "redis": "4.6.13",
     "serialize-error": "^2.1.0",
     "serialize-javascript": "^6.0.0",
     "tus-js-client": "^3.1.3",
diff --git a/packages/@uppy/companion/src/server/Uploader.js b/packages/@uppy/companion/src/server/Uploader.js
index 63dc0226ba..eecd1de42f 100644
--- a/packages/@uppy/companion/src/server/Uploader.js
+++ b/packages/@uppy/companion/src/server/Uploader.js
@@ -158,6 +158,9 @@ class StreamableBlob {
 }
 
 class Uploader {
+  /** @type {import('ioredis').Redis} */
+  storage
+
   /**
    * Uploads file to destination based on the supplied protocol (tus, s3-multipart, multipart)
    * For tus uploads, the deferredLength option is enabled, because file size value can be unreliable
@@ -446,9 +449,7 @@ class Uploader {
     // https://github.com/transloadit/uppy/issues/3748
     const keyExpirySec = 60 * 60 * 24
     const redisKey = `${Uploader.STORAGE_PREFIX}:${this.token}`
-    this.storage.set(redisKey, jsonStringify(state), {
-      EX: keyExpirySec,
-    })
+    this.storage.set(redisKey, jsonStringify(state), 'EX', keyExpirySec)
   }
 
   throttledEmitProgress = throttle((dataToEmit) => {
diff --git a/packages/@uppy/companion/src/server/emitter/redis-emitter.js b/packages/@uppy/companion/src/server/emitter/redis-emitter.js
index 974a60b54e..ca2bce68ab 100644
--- a/packages/@uppy/companion/src/server/emitter/redis-emitter.js
+++ b/packages/@uppy/companion/src/server/emitter/redis-emitter.js
@@ -6,17 +6,22 @@ const logger = require('../logger')
  * This module simulates the builtin events.EventEmitter but with the use of redis.
  * This is useful for when companion is running on multiple instances and events need
  * to be distributed across.
+ * 
+ * @param {import('ioredis').Redis} redisClient 
+ * @param {string} redisPubSubScope 
+ * @returns 
  */
 module.exports = (redisClient, redisPubSubScope) => {
   const prefix = redisPubSubScope ? `${redisPubSubScope}:` : ''
   const getPrefixedEventName = (eventName) => `${prefix}${eventName}`
-  const publisher = redisClient.duplicate()
-  publisher.on('error', err => logger.error('publisher redis error', err))
+  const publisher = redisClient.duplicate({ lazyConnect: true })
+  publisher.on('error', err => logger.error('publisher redis error', err.toString()))
+  /** @type {import('ioredis').Redis} */
   let subscriber
 
   const connectedPromise = publisher.connect().then(() => {
     subscriber = publisher.duplicate()
-    subscriber.on('error', err => logger.error('subscriber redis error', err))
+    subscriber.on('error', err => logger.error('subscriber redis error', err.toString()))
     return subscriber.connect()
   })
 
@@ -55,20 +60,32 @@ module.exports = (redisClient, redisPubSubScope) => {
       handlersByThisEventName.delete(handler)
       if (handlersByThisEventName.size === 0) handlersByEvent.delete(eventName)
 
-      return subscriber.pUnsubscribe(getPrefixedEventName(eventName), actualHandler)
+      subscriber.off('pmessage', actualHandler)
+      return subscriber.punsubscribe(getPrefixedEventName(eventName))
     })
   }
 
+  /**
+   * 
+   * @param {string} eventName 
+   * @param {*} handler 
+   * @param {*} _once 
+   */
   function addListener (eventName, handler, _once = false) {
-    function actualHandler (message) {
+    function actualHandler (pattern, channel, message) {
+      if (pattern !== getPrefixedEventName(eventName)) {
+        return
+      }
+
       if (_once) removeListener(eventName, handler)
       let args
       try {
         args = JSON.parse(message)
       } catch (ex) {
-        return handleError(new Error(`Invalid JSON received! Channel: ${eventName} Message: ${message}`))
+        handleError(new Error(`Invalid JSON received! Channel: ${eventName} Message: ${message}`))
+        return
       }
-      return handler(...args)
+      handler(...args)
     }
 
     let handlersByThisEventName = handlersByEvent.get(eventName)
@@ -78,7 +95,10 @@ module.exports = (redisClient, redisPubSubScope) => {
     }
     handlersByThisEventName.set(handler, actualHandler)
 
-    runWhenConnected(() => subscriber.pSubscribe(getPrefixedEventName(eventName), actualHandler))
+    runWhenConnected(() => {
+      subscriber.on('pmessage', actualHandler)
+      return subscriber.psubscribe(getPrefixedEventName(eventName))
+    })
   }
 
   /**
@@ -134,7 +154,7 @@ module.exports = (redisClient, redisPubSubScope) => {
 
     return runWhenConnected(() => {
       handlersByEvent.delete(eventName)
-      return subscriber.pUnsubscribe(getPrefixedEventName(eventName))
+      return subscriber.punsubscribe(getPrefixedEventName(eventName))
     })
   }
 
diff --git a/packages/@uppy/companion/src/server/redis.js b/packages/@uppy/companion/src/server/redis.js
index e7391e3234..bbbec1728d 100644
--- a/packages/@uppy/companion/src/server/redis.js
+++ b/packages/@uppy/companion/src/server/redis.js
@@ -1,43 +1,34 @@
-const redis = require('redis')
+const Redis = require('ioredis').default
 
 const logger = require('./logger')
 
+/** @type {import('ioredis').Redis} */
 let redisClient
 
 /**
  * A Singleton module that provides a single redis client through out
  * the lifetime of the server
  *
- * @param {{ redisUrl?: string, redisOptions?: Record<string, any> }} [companionOptions] options
+ * @param {string} [redisUrl] ioredis url
+ * @param {Record<string, any>} [redisOptions] ioredis client options
  */
-function createClient (companionOptions) {
+function createClient (redisUrl, redisOptions) {
   if (!redisClient) {
-    const { redisUrl, redisOptions } = companionOptions
-    redisClient = redis.createClient({
-      ...redisOptions,
-      ...(redisUrl && { url: redisUrl }),
-    })
-
-    redisClient.on('error', err => logger.error('redis error', err))
-
-    ;(async () => {
-      try {
-        // fire and forget.
-        // any requests made on the client before connection is established will be auto-queued by node-redis
-        await redisClient.connect()
-      } catch (err) {
-        logger.error(err.message, 'redis.error')
-      }
-    })()
+    if (redisUrl) {
+      redisClient = new Redis(redisUrl, redisOptions)
+    } else {
+      redisClient = new Redis(redisOptions)
+    }
+    redisClient.on('error', err => logger.error('redis error', err.toString()))
   }
 
   return redisClient
 }
 
-module.exports.client = (companionOptions) => {
-  if (!companionOptions?.redisUrl && !companionOptions?.redisOptions) {
+module.exports.client = ({ redisUrl, redisOptions } = { redisUrl: undefined, redisOptions: undefined }) => {
+  if (!redisUrl && !redisOptions) {
     return redisClient
   }
 
-  return createClient(companionOptions)
+  return createClient(redisUrl, redisOptions)
 }
diff --git a/packages/@uppy/companion/src/standalone/helper.js b/packages/@uppy/companion/src/standalone/helper.js
index 1a77119e16..426a317dbd 100644
--- a/packages/@uppy/companion/src/standalone/helper.js
+++ b/packages/@uppy/companion/src/standalone/helper.js
@@ -147,9 +147,9 @@ const getConfigFromEnv = () => {
     periodicPingCount: process.env.COMPANION_PERIODIC_PING_COUNT
       ? parseInt(process.env.COMPANION_PERIODIC_PING_COUNT, 10) : undefined,
     filePath: process.env.COMPANION_DATADIR,
-    redisUrl: process.env.COMPANION_REDIS_URL,
     redisPubSubScope: process.env.COMPANION_REDIS_PUBSUB_SCOPE,
-    //  redisOptions refers to https://www.npmjs.com/package/redis#options-object-properties
+    redisUrl: process.env.COMPANION_REDIS_URL,
+    //  redisOptions refers to https://redis.github.io/ioredis/index.html#RedisOptions
     redisOptions: (() => {
       try {
         if (!process.env.COMPANION_REDIS_OPTIONS) {
diff --git a/yarn.lock b/yarn.lock
index 9b78b7ffd9..f1d48416da 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5106,6 +5106,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@ioredis/commands@npm:^1.1.1":
+  version: 1.2.0
+  resolution: "@ioredis/commands@npm:1.2.0"
+  checksum: 10/a8253c9539b7e5463d4a98e6aa5b1b863fb4a4978191ba9dc42ec2c0fb5179d8d1fe4a29096d5954f91ba9600d1bdc6c1d18b044eab36f645f267fd37d7c0906
+  languageName: node
+  linkType: hard
+
 "@isaacs/cliui@npm:^8.0.2":
   version: 8.0.2
   resolution: "@isaacs/cliui@npm:8.0.2"
@@ -7036,62 +7043,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@redis/bloom@npm:1.2.0":
-  version: 1.2.0
-  resolution: "@redis/bloom@npm:1.2.0"
-  peerDependencies:
-    "@redis/client": ^1.0.0
-  checksum: 10/a16408f729ddd032a52c9d998661dfa7beabc0e92760d30619c3166c7a53a98c037956d93d230b787005fd8a599a7456461ca7429c1916893c2d13d59a41e0e6
-  languageName: node
-  linkType: hard
-
-"@redis/client@npm:1.5.14":
-  version: 1.5.14
-  resolution: "@redis/client@npm:1.5.14"
-  dependencies:
-    cluster-key-slot: "npm:1.1.2"
-    generic-pool: "npm:3.9.0"
-    yallist: "npm:4.0.0"
-  checksum: 10/aab53eff9456e0a5e0ef78ce16db3eca4b837274b8285c5d66ced549573dbacf75972935806911274d6dd906a53d982ef9b1a6f11a8efe4a18efa94ec9c2a4b3
-  languageName: node
-  linkType: hard
-
-"@redis/graph@npm:1.1.1":
-  version: 1.1.1
-  resolution: "@redis/graph@npm:1.1.1"
-  peerDependencies:
-    "@redis/client": ^1.0.0
-  checksum: 10/96b8ee9bec124947465848b56a014805f9639e09704e03c75a92072a319599ac9dcd4f9ace22970a7f72131a241166ad31db4dc6931b34808d22a5ca94649ba5
-  languageName: node
-  linkType: hard
-
-"@redis/json@npm:1.0.6":
-  version: 1.0.6
-  resolution: "@redis/json@npm:1.0.6"
-  peerDependencies:
-    "@redis/client": ^1.0.0
-  checksum: 10/bedd8b6fd152ed480f993c6372288f210a9c0e60bb39c02861d5ce2cb5452119229435572cd94886cdbde5fbae014471fc179dff1dbc86f045782e0358af1b0f
-  languageName: node
-  linkType: hard
-
-"@redis/search@npm:1.1.6":
-  version: 1.1.6
-  resolution: "@redis/search@npm:1.1.6"
-  peerDependencies:
-    "@redis/client": ^1.0.0
-  checksum: 10/7a2543012fc2c88ff4c6a6c9c1b537b472d5af340c2717f968562ef2ead713b02dd22cfadc5d5e16c0d32279a4c04bee974e0f20de416a3561a1221b3dccc790
-  languageName: node
-  linkType: hard
-
-"@redis/time-series@npm:1.0.5":
-  version: 1.0.5
-  resolution: "@redis/time-series@npm:1.0.5"
-  peerDependencies:
-    "@redis/client": ^1.0.0
-  checksum: 10/be735fe7497b157ef8291fed157342a9a5017884488fa519b271745cfb9500a498d6f8e4bee6d34b58892d65f8ef7a3f4c458d083fb19892b4d3633d0d6c7db6
-  languageName: node
-  linkType: hard
-
 "@reduxjs/toolkit@npm:^1.9.3":
   version: 1.9.7
   resolution: "@reduxjs/toolkit@npm:1.9.7"
@@ -10130,6 +10081,7 @@ __metadata:
     got: "npm:^13.0.0"
     grant: "npm:5.4.22"
     helmet: "npm:^4.6.0"
+    ioredis: "npm:^5.3.2"
     ipaddr.js: "npm:^2.0.1"
     jest: "npm:^29.0.0"
     jsonwebtoken: "npm:9.0.2"
@@ -10142,7 +10094,6 @@ __metadata:
     nock: "npm:^13.1.3"
     node-schedule: "npm:2.1.1"
     prom-client: "npm:14.0.1"
-    redis: "npm:4.6.13"
     serialize-error: "npm:^2.1.0"
     serialize-javascript: "npm:^6.0.0"
     supertest: "npm:6.2.4"
@@ -13309,7 +13260,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"cluster-key-slot@npm:1.1.2":
+"cluster-key-slot@npm:^1.1.0":
   version: 1.1.2
   resolution: "cluster-key-slot@npm:1.1.2"
   checksum: 10/516ed8b5e1a14d9c3a9c96c72ef6de2d70dfcdbaa0ec3a90bc7b9216c5457e39c09a5775750c272369070308542e671146120153062ab5f2f481bed5de2c925f
@@ -14716,6 +14667,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"denque@npm:^2.1.0":
+  version: 2.1.0
+  resolution: "denque@npm:2.1.0"
+  checksum: 10/8ea05321576624b90acfc1ee9208b8d1d04b425cf7573b9b4fa40a2c3ed4d4b0af5190567858f532f677ed2003d4d2b73c8130b34e3c7b8d5e88cdcfbfaa1fe7
+  languageName: node
+  linkType: hard
+
 "depd@npm:2.0.0, depd@npm:~2.0.0":
   version: 2.0.0
   resolution: "depd@npm:2.0.0"
@@ -17736,13 +17694,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"generic-pool@npm:3.9.0":
-  version: 3.9.0
-  resolution: "generic-pool@npm:3.9.0"
-  checksum: 10/3c632d30a6a7d47412dc67ddc517992691e0fde819c0cb6b5871bc87d10f61a7c09f12a60dbd77c78ae3e6ca10db41e2eaee28985ce724d9620354a006205ce1
-  languageName: node
-  linkType: hard
-
 "gensync@npm:^1.0.0-beta.2":
   version: 1.0.0-beta.2
   resolution: "gensync@npm:1.0.0-beta.2"
@@ -19017,6 +18968,23 @@ __metadata:
   languageName: node
   linkType: hard
 
+"ioredis@npm:^5.3.2":
+  version: 5.4.1
+  resolution: "ioredis@npm:5.4.1"
+  dependencies:
+    "@ioredis/commands": "npm:^1.1.1"
+    cluster-key-slot: "npm:^1.1.0"
+    debug: "npm:^4.3.4"
+    denque: "npm:^2.1.0"
+    lodash.defaults: "npm:^4.2.0"
+    lodash.isarguments: "npm:^3.1.0"
+    redis-errors: "npm:^1.2.0"
+    redis-parser: "npm:^3.0.0"
+    standard-as-callback: "npm:^2.1.0"
+  checksum: 10/9043b812ac58065e80c759d130602cc64490fcaeaacf93723453fda04c7ba61dab0e2f50380eacb045592378ededf44f270c0d43e13e3e8b8d7c5a8d7fecb823
+  languageName: node
+  linkType: hard
+
 "ip-address@npm:^9.0.5":
   version: 9.0.5
   resolution: "ip-address@npm:9.0.5"
@@ -21672,6 +21640,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"lodash.defaults@npm:^4.2.0":
+  version: 4.2.0
+  resolution: "lodash.defaults@npm:4.2.0"
+  checksum: 10/6a2a9ea5ad7585aff8d76836c9e1db4528e5f5fa50fc4ad81183152ba8717d83aef8aec4fa88bf3417ed946fd4b4358f145ee08fbc77fb82736788714d3e12db
+  languageName: node
+  linkType: hard
+
 "lodash.frompairs@npm:^4.0.1":
   version: 4.0.1
   resolution: "lodash.frompairs@npm:4.0.1"
@@ -21686,6 +21661,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"lodash.isarguments@npm:^3.1.0":
+  version: 3.1.0
+  resolution: "lodash.isarguments@npm:3.1.0"
+  checksum: 10/e5186d5fe0384dcb0652501d9d04ebb984863ebc9c9faa2d4b9d5dfd81baef9ffe8e2887b9dc471d62ed092bc0788e5f1d42e45c72457a2884bbb54ac132ed92
+  languageName: node
+  linkType: hard
+
 "lodash.isboolean@npm:^3.0.3":
   version: 3.0.3
   resolution: "lodash.isboolean@npm:3.0.3"
@@ -27473,17 +27455,19 @@ __metadata:
   languageName: node
   linkType: hard
 
-"redis@npm:4.6.13":
-  version: 4.6.13
-  resolution: "redis@npm:4.6.13"
+"redis-errors@npm:^1.0.0, redis-errors@npm:^1.2.0":
+  version: 1.2.0
+  resolution: "redis-errors@npm:1.2.0"
+  checksum: 10/001c11f63ddd52d7c80eb4f4ede3a9433d29a458a7eea06b9154cb37c9802a218d93b7988247aa8c958d4b5d274b18354e8853c148f1096fda87c6e675cfd3ee
+  languageName: node
+  linkType: hard
+
+"redis-parser@npm:^3.0.0":
+  version: 3.0.0
+  resolution: "redis-parser@npm:3.0.0"
   dependencies:
-    "@redis/bloom": "npm:1.2.0"
-    "@redis/client": "npm:1.5.14"
-    "@redis/graph": "npm:1.1.1"
-    "@redis/json": "npm:1.0.6"
-    "@redis/search": "npm:1.1.6"
-    "@redis/time-series": "npm:1.0.5"
-  checksum: 10/cc66182b8fa78c2a63b5300b15fa6fbf8908773d78bc5ca3960018f465595b51dfecaebe8c848111a3b723530f17bdaa1c186f73875cd9ba351f32d2e5e14d5f
+    redis-errors: "npm:^1.0.0"
+  checksum: 10/b10846844b4267f19ce1a6529465819c3d78c3e89db7eb0c3bb4eb19f83784797ec411274d15a77dbe08038b48f95f76014b83ca366dc955a016a3a0a0234650
   languageName: node
   linkType: hard
 
@@ -29788,6 +29772,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"standard-as-callback@npm:^2.1.0":
+  version: 2.1.0
+  resolution: "standard-as-callback@npm:2.1.0"
+  checksum: 10/88bec83ee220687c72d94fd86a98d5272c91d37ec64b66d830dbc0d79b62bfa6e47f53b71646011835fc9ce7fae62739545d13124262b53be4fbb3e2ebad551c
+  languageName: node
+  linkType: hard
+
 "start-server-and-test@npm:1.14.0":
   version: 1.14.0
   resolution: "start-server-and-test@npm:1.14.0"
@@ -33285,13 +33276,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"yallist@npm:4.0.0, yallist@npm:^4.0.0":
-  version: 4.0.0
-  resolution: "yallist@npm:4.0.0"
-  checksum: 10/4cb02b42b8a93b5cf50caf5d8e9beb409400a8a4d85e83bb0685c1457e9ac0b7a00819e9f5991ac25ffabb56a78e2f017c1acc010b3a1babfe6de690ba531abd
-  languageName: node
-  linkType: hard
-
 "yallist@npm:^2.1.2":
   version: 2.1.2
   resolution: "yallist@npm:2.1.2"
@@ -33306,6 +33290,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"yallist@npm:^4.0.0":
+  version: 4.0.0
+  resolution: "yallist@npm:4.0.0"
+  checksum: 10/4cb02b42b8a93b5cf50caf5d8e9beb409400a8a4d85e83bb0685c1457e9ac0b7a00819e9f5991ac25ffabb56a78e2f017c1acc010b3a1babfe6de690ba531abd
+  languageName: node
+  linkType: hard
+
 "yaml@npm:2.3.1":
   version: 2.3.1
   resolution: "yaml@npm:2.3.1"