diff --git a/package.json b/package.json
index 0fe2439..585ffa9 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "debug": "^4.3.4",
     "find-my-way": "^6.3.0",
     "is-docker": "^2.2.1",
-    "tardis-dev": "^13.29.14",
+    "tardis-dev": "^13.30.0",
     "uWebSockets.js": "github:uNetworking/uWebSockets.js#v20.42.0",
     "yargs": "^17.5.1"
   },
diff --git a/src/ws/subscriptionsmappers.ts b/src/ws/subscriptionsmappers.ts
index 61dd7ef..aceb5c5 100644
--- a/src/ws/subscriptionsmappers.ts
+++ b/src/ws/subscriptionsmappers.ts
@@ -644,6 +644,7 @@ export const subscriptionsMappers: { [key in Exchange]: SubscriptionMapper } = {
   poloniex: poloniexMapper,
   ascendex: ascendexMapper,
   dydx: dydxMapper,
+  'dydx-v4': dydxMapper,
   'huobi-dm-options': huobiMapper,
   'binance-options': binanceMapper,
   upbit: upbitMapper,