diff --git a/VERSION b/VERSION
index 7179039..d510910 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.2.3
+0.3.0-dev
diff --git a/mix.exs b/mix.exs
index acc6411..a72d72c 100644
--- a/mix.exs
+++ b/mix.exs
@@ -59,7 +59,8 @@ defmodule JSON.LD.Mixfile do
 
   defp deps do
     [
-      {:rdf, "~> 0.4"},
+# TODO: {:rdf, "~> 0.5"},
+      {:rdf, git: "https://github.com/marcelotto/rdf-ex"},
       {:jason, "~> 1.1.1"},
       {:dialyxir, "~> 0.4",       only: [:dev, :test], runtime: false},
       {:credo, "~> 0.6",          only: [:dev, :test], runtime: false},
diff --git a/mix.lock b/mix.lock
index 3c4d1df..a580096 100644
--- a/mix.lock
+++ b/mix.lock
@@ -2,6 +2,7 @@
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], []},
   "certifi": {:hex, :certifi, "2.0.0", "a0c0e475107135f76b8c1d5bc7efb33cd3815cb3cf3dea7aefdd174dabead064", [:rebar3], []},
   "credo": {:hex, :credo, "0.8.10", "261862bb7363247762e1063713bb85df2bbd84af8d8610d1272cd9c1943bba63", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, optional: false]}]},
+  "decimal": {:hex, :decimal, "1.5.0", "b0433a36d0e2430e3d50291b1c65f53c37d56f83665b43d79963684865beab68", [:mix], [], "hexpm"},
   "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], []},
   "earmark": {:hex, :earmark, "1.2.4", "99b637c62a4d65a20a9fb674b8cffb8baa771c04605a80c911c4418c69b75439", [:mix], []},
   "ex_doc": {:hex, :ex_doc, "0.18.3", "f4b0e4a2ec6f333dccf761838a4b253d75e11f714b85ae271c9ae361367897b7", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, optional: false]}]},
@@ -13,7 +14,7 @@
   "jsx": {:hex, :jsx, "2.8.3", "a05252d381885240744d955fbe3cf810504eb2567164824e19303ea59eef62cf", [:mix, :rebar3], []},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], []},
   "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], []},
-  "rdf": {:hex, :rdf, "0.4.1", "8c879a091cc2a6035cc6e955186948a15477c9cce4a7ca61a54f38f7259ff396", [:mix], []},
+  "rdf": {:git, "https://github.com/marcelotto/rdf-ex", "be390adaeab8ca061022ea8ad8c84b3f55858a90", []},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.1", "28a4d65b7f59893bc2c7de786dec1e1555bd742d336043fe644ae956c3497fbe", [:make, :rebar], []},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.3.1", "a1f612a7b512638634a603c8f401892afbf99b8ce93a45041f8aaca99cadb85e", [:rebar3], []},
 }