diff --git a/mix.exs b/mix.exs
index 9bf5a31..da1c3ae 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,10 +1,13 @@
 defmodule OpentelemetryAbsinthe.MixProject do
   use Mix.Project
 
+  @source_url "https://github.com/primait/opentelemetry_absinthe"
+  @version "2.0.1-rc.0"
+
   def project do
     [
       app: :opentelemetry_absinthe,
-      version: "2.0.1",
+      version: @version,
       elixir: "~> 1.12",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
@@ -29,7 +32,10 @@ defmodule OpentelemetryAbsinthe.MixProject do
   defp docs do
     [
       main: "OpentelemetryAbsinthe",
-      formatters: ["html"]
+      source_ref: @version,
+      source_url: @source_url,
+      formatters: ["html"],
+      extras: ["README.md"]
     ]
   end