No more :use.

src/slam/hound/prettify.clj

@@ -1,8 +1,8 @@
 (ns slam.hound.prettify
   "Format a namespace declaration using pretty print with custom dispatch."
-  (:use [clojure.pprint :only [code-dispatch pprint with-pprint-dispatch
-                               cl-format pprint-logical-block pprint-newline
-                               formatter-out write-out]]))
+  (:require [clojure.pprint :refer [code-dispatch pprint with-pprint-dispatch
+                                    cl-format pprint-logical-block
+                                    pprint-newline formatter-out write-out]]))
 
 (defn- brackets
   "Figure out which kind of brackets to use"

src/slam/hound/search.clj

@@ -1,6 +1,6 @@
 (ns slam.hound.search
   "Search the classpath for vars and classes."
-  (:use [clojure.java.io :only [file reader]])
+  (:require [clojure.java.io :refer [file reader]])
   (:import (java.io BufferedReader File FilenameFilter
                     InputStreamReader PushbackReader)
            (java.util StringTokenizer)

src/slam/hound/stitch.clj

@@ -1,5 +1,5 @@
 (ns slam.hound.stitch
-  (:use [slam.hound.prettify :only [prettify]]))
+  (:require [slam.hound.prettify :refer [prettify]]))
 
 (def ^:private ns-map-clauses [:require-as :require-refer :import])