diff --git a/test-project/mix.exs b/test-project/mix.exs
index 1f4f680..69d6504 100644
--- a/test-project/mix.exs
+++ b/test-project/mix.exs
@@ -5,7 +5,7 @@ defmodule Test.MixProject do
     [
       app: :test,
       version: "0.1.0",
-      elixir: "~> 1.9",
+      elixir: "~> 1.1",
       start_permanent: Mix.env() == :prod,
       deps: deps()
     ]