diff --git a/mix.exs b/mix.exs
index a9e787a..6b28929 100644
--- a/mix.exs
+++ b/mix.exs
@@ -42,7 +42,7 @@ defmodule Ethereumex.Mixfile do
       {:ex_doc, "~> 0.21", only: :dev, runtime: false},
       {:dialyxir, "~> 1.0", only: [:dev, :test], runtime: false},
       {:poolboy, "~> 1.5.1"},
-      {:telemetry, "~> 0.4", optional: true}
+      {:telemetry, "~> 0.4"}
     ]
   end
 end