diff --git a/project.clj b/project.clj
index 8d4e972..1fa52b2 100644
--- a/project.clj
+++ b/project.clj
@@ -3,7 +3,7 @@
   :url "http://fmi.clojure.bg/lectures"
   :license {:name "Eclipse Public License"
             :url "http://www.eclipse.org/legal/epl-v10.html"}
-  :dependencies [[org.clojure/clojure "1.5.0"]
+  :dependencies [[org.clojure/clojure "1.6.0"]
                  [org.blancas/kern "0.5.0"]
                  [ring "1.2.1"]
                  [compojure "1.1.6"]
diff --git a/src/lectures/doc_table.clj b/src/lectures/doc_table.clj
index 63e31e1..1411bd1 100644
--- a/src/lectures/doc_table.clj
+++ b/src/lectures/doc_table.clj
@@ -1,7 +1,5 @@
 (ns lectures.doc-table
-  (:require clojure.repl
-            [clojure.string :as str]
-            clojure.set) ; TODO: find why we need to requre all names we use and fix it
+  (:require [clojure.string :as str])
   (:use [clojure.walk :only (postwalk)]))
 
 (def ^:dynamic *doc-table*)