diff --git a/project.clj b/project.clj
index ea3a95f..db17cc0 100644
--- a/project.clj
+++ b/project.clj
@@ -1,7 +1,7 @@
 (defproject php-clj "0.4.1"
   :description "Deserialize PHP into Clojure data structures and back again."
   :url "https://github.com/mudge/php-clj"
-  :dependencies [[ordered "1.3.2"]]
+  :dependencies [[org.flatland/ordered "1.5.6"]]
   :license {:name "Eclipse Public License"
             :url "http://www.eclipse.org/legal/epl-v10.html"}
   :profiles {:dev {:dependencies [[midje "1.5.1"]]
diff --git a/src/php_clj/core.clj b/src/php_clj/core.clj
index 2f8feec..0ca0846 100644
--- a/src/php_clj/core.clj
+++ b/src/php_clj/core.clj
@@ -5,7 +5,7 @@
 (ns php_clj.core
   (:require [php_clj.reader :as r]
             [clojure.string :as s]
-            [ordered.map :refer [ordered-map]]))
+            [flatland.ordered.map :refer [ordered-map]]))
 
 (declare reader->clj)
 (declare clj->php)
diff --git a/test/php_clj/t_core.clj b/test/php_clj/t_core.clj
index 2d6d473..12906ec 100644
--- a/test/php_clj/t_core.clj
+++ b/test/php_clj/t_core.clj
@@ -3,7 +3,7 @@
 ;; http://www.eclipse.org/legal/epl-v10.html
 
 (ns php_clj.t-core
-  (:require [ordered.map :refer [ordered-map]]
+  (:require [flatland.ordered.map :refer [ordered-map]]
             [midje.sweet :refer :all]
             [php_clj.core :refer :all]))