Receiving EOF from redis when subscribing to a channel

Question

Redis has some sort of timeout after 1hr, which raises EOF error when I'm subscribing to some channels.

My Code:

pubsub := redis.PubSubConn{Conn: rc}
events := ["controller"]
err = pubsub.Subscribe(events)
if err != nil {
      return
}
for {
    switch v := pubsub.Receive().(type) {
     case error:
        log.Printf("Error: %v", v)
         return
     case redis.Message:
          ...

And each hour I see this in the logs (which cause my service to crash):

Error: EOF

Why do I always receive this EOF message? Should I set some kind of a timeout somewhere?

Versions: Redis docker => redis:6.0.9-alpine (no redis.conf)

redigo => v1.8.3