How to Unset Cookie with Ring

cookie.clj

; (use [ring.util.response :only [redirect set-cookie]])
; (set-cookie (redirect "/") :token token)

(defn unset-cookie [response name]
  (assoc-in response [:cookies name] {:value "expires" :path "/" :expires "Thursday, 21 November 1985 00:00:00 GMT"}))

(unset-cookie (redirect "/cookies/die") :token)

; Notes:
; Ring provides the following fields for manipulating cookies:
;   :value, :path, :domain, :port, :max-age, :expires,:secure, :http-only
; :max-age and :expires must follow the formats outline by the org.joda.time Interval and DateTime API, respectively.
; name and :path must match in order to update to the same cookie