diff --git a/test/test_helper.exs b/test/test_helper.exs
index 3d7a377..01196e5 100644
--- a/test/test_helper.exs
+++ b/test/test_helper.exs
@@ -5,7 +5,7 @@ System.put_env("MIX_ENV", "dev")
 
 ExUnit.start
 
-:application.ensure_all_started(:hackney)
+Application.Behaviour.start(:hackney)
 
 defmodule MixHelpers do
   import ExUnit.Assertions