diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07463ec..347e677 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# v 0.2.3
+
+* Fix Elixir 1.3 warnings
+
 # v 0.2.2
 
 * Credentials now include token and secret
diff --git a/mix.exs b/mix.exs
index 6078c58..47c25ad 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule UeberauthTwitter.Mixfile do
   use Mix.Project
 
-  @version "0.2.2"
+  @version "0.2.3"
   @url "https://github.com/ueberauth/ueberauth_twitter"
 
   def project do
diff --git a/mix.lock b/mix.lock
index 02e8610..d1f58ca 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,15 +1,15 @@
-%{"certifi": {:hex, :certifi, "0.1.1"},
-  "earmark": {:hex, :earmark, "0.1.19"},
-  "ex_doc": {:hex, :ex_doc, "0.10.0"},
-  "hackney": {:hex, :hackney, "1.4.4"},
-  "httpoison": {:hex, :httpoison, "0.8.0"},
-  "idna": {:hex, :idna, "1.0.2"},
-  "mimerl": {:hex, :mimerl, "1.0.0"},
+%{"certifi": {:hex, :certifi, "0.1.1", "7fd287d0fea2d65e99f5bef3b8573fa46f4310078709be969adcbc93a580ee73", [:rebar], []},
+  "earmark": {:hex, :earmark, "0.1.19", "ffec54f520a11b711532c23d8a52b75a74c09697062d10613fa2dbdf8a9db36e", [:mix], []},
+  "ex_doc": {:hex, :ex_doc, "0.10.0", "f49c237250b829df986486b38f043e6f8e19d19b41101987f7214543f75947ec", [:mix], [{:earmark, "~> 0.1.17 or ~> 0.2", [hex: :earmark, optional: true]}]},
+  "hackney": {:hex, :hackney, "1.4.4", "c4e9fd8d77c79f03c09712500780077aeb6cdfe7bab3f4c56cb87d337a7526d7", [:rebar3], [{:certifi, "0.1.1", [hex: :certifi, optional: false]}, {:idna, "1.0.2", [hex: :idna, optional: false]}, {:mimerl, "1.0.0", [hex: :mimerl, optional: false]}, {:ssl_verify_hostname, "1.0.5", [hex: :ssl_verify_hostname, optional: false]}]},
+  "httpoison": {:hex, :httpoison, "0.8.0", "52a958d40b2aa46da418cdf6d8dfd82ba83e94d5e60920dfa5f40c05b34fe073", [:mix], [{:hackney, "~> 1.4.4", [hex: :hackney, optional: false]}]},
+  "idna": {:hex, :idna, "1.0.2", "397e3d001c002319da75759b0a81156bf11849c71d565162436d50020cb7265e", [:make], []},
+  "mimerl": {:hex, :mimerl, "1.0.0", "b9813e0fa1019420da8c8001748d7c34791fd49464cb28762bc22638b1ff6198", [:rebar3], []},
   "mimetype_parser": {:hex, :mimetype_parser, "0.1.0"},
   "oauth": {:git, "https://github.com/tim/erlang-oauth.git", "cd31addc828179983564fd57738f1680a4a4d1ff", []},
   "oauth2": {:hex, :oauth2, "0.5.0"},
   "oauther": {:hex, :oauther, "1.0.2"},
-  "plug": {:hex, :plug, "1.0.3"},
+  "plug": {:hex, :plug, "1.0.3", "8bbcbdaa4cb15170b9a15cb12153e8a6d9e176ce78e4c1990ea0b505b0ca24a0", [:mix], [{:cowboy, "~> 1.0", [hex: :cowboy, optional: true]}]},
   "poison": {:hex, :poison, "1.5.0"},
-  "ssl_verify_hostname": {:hex, :ssl_verify_hostname, "1.0.5"},
-  "ueberauth": {:hex, :ueberauth, "0.2.0"}}
+  "ssl_verify_hostname": {:hex, :ssl_verify_hostname, "1.0.5", "2e73e068cd6393526f9fa6d399353d7c9477d6886ba005f323b592d389fb47be", [:make], []},
+  "ueberauth": {:hex, :ueberauth, "0.2.0", "9160c601b468c6692462a56be7ad8890d1a2d84519d7d9c4541da5b07d6495e1", [:mix], [{:plug, "~> 1.0", [hex: :plug, optional: false]}]}}