diff --git a/lib/ueberauth/strategy/twitter.ex b/lib/ueberauth/strategy/twitter.ex
index 0d49198..4e1663a 100644
--- a/lib/ueberauth/strategy/twitter.ex
+++ b/lib/ueberauth/strategy/twitter.ex
@@ -126,6 +126,6 @@ defmodule Ueberauth.Strategy.Twitter do
   end
 
   defp json_library do
-    Application.get_env(:ueberauth, :json_library)
+    Ueberauth.Config.json_library() || Jason
   end
 end