config/conf/channels.py

@@ -5,8 +5,12 @@ CHANNEL_LAYERS = {
     "default": {
         "BACKEND": "channels_redis.core.RedisChannelLayer",
         "CONFIG": {
-            "hosts": [(env.str("REDIS_HOST", "redis"), env.int("REDIS_PORT", 6379))],
+            "hosts": [
+                (
+                    env.str("REDIS_HOST", "redis"),
+                    env.int("REDIS_PORT_6379_TCP_PORT", 6379)
+                )
+            ],
         },
     },
 }
-