```clojure
{:user {:mirrors {#"central|clojars"
                  "http://s3pository.herokuapp.com/clojure"}}
 :production {:mirrors {#"central|clojars"
                        "http://s3pository.herokuapp.com/clojure"}}}```

Add back heroku profile with mirrors.
user
```clojure
{:user {:mirrors {#"central|clojars"
                  "http://s3pository.herokuapp.com/clojure"}}
 :production {:mirrors {#"central|clojars"
                        "http://s3pository.herokuapp.com/clojure"}}
 :heroku {:mirrors {#"central|clojars"
                    "http://s3pository.herokuapp.com/clojure"}}}```
assistant