diff --git a/mix.exs b/mix.exs
index 04cdeb1..035dba6 100644
--- a/mix.exs
+++ b/mix.exs
@@ -26,7 +26,7 @@ defmodule Reaxt.Mixfile do
      {:poolboy, "~> 1.5.0"},
      {:cowboy,"~> 1.0.0"},
      {:plug,"~> 1.0"},
-     {:poison,"~> 1.4.0"}]
+     {:poison,"~> 2.1.0"}]
   end
 
   defp package do
diff --git a/mix.lock b/mix.lock
index 987a689..189771f 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,7 +1,7 @@
-%{"cowboy": {:hex, :cowboy, "1.0.2"},
-  "cowlib": {:hex, :cowlib, "1.0.1"},
-  "exos": {:hex, :exos, "1.0.0"},
-  "plug": {:hex, :plug, "1.0.0"},
-  "poison": {:hex, :poison, "1.4.0"},
-  "poolboy": {:hex, :poolboy, "1.4.2"},
-  "ranch": {:hex, :ranch, "1.1.0"}}
+%{"cowboy": {:hex, :cowboy, "1.0.2", "876a2f63eaa5da5bd0610569d6402cabef8b3f48171233c11cfeee9f37d1f0c9", [:rebar], [{:cowlib, "~> 1.0.0", [hex: :cowlib, optional: false]}, {:ranch, "~> 1.0", [hex: :ranch, optional: false]}]},
+  "cowlib": {:hex, :cowlib, "1.0.1", "175a633c472058bbeb1b238a6409766a48b52b43b7b687ed70f03cf6e854b7d9", [:make], []},
+  "exos": {:hex, :exos, "1.0.0", "4eb19eb958de0c07284a3e6d23966b41e0bce37556120fcf908900b1eeee2b60", [:mix], []},
+  "plug": {:hex, :plug, "1.0.0", "dfb6e50cebdde4dd338d175df9b067e8e2e3a34e8b7b61aba6f5213cf7d13000", [:mix], [{:cowboy, "~> 1.0", [hex: :cowboy, optional: true]}]},
+  "poison": {:hex, :poison, "2.1.0", "f583218ced822675e484648fa26c933d621373f01c6c76bd00005d7bd4b82e27", [:mix], []},
+  "poolboy": {:hex, :poolboy, "1.5.1", "6b46163901cfd0a1b43d692657ed9d7e599853b3b21b95ae5ae0a777cf9b6ca8", [:rebar], []},
+  "ranch": {:hex, :ranch, "1.1.0", "f7ed6d97db8c2a27cca85cacbd543558001fc5a355e93a7bff1e9a9065a8545b", [:make], []}}