diff --git a/messages/elixir/mix.exs b/messages/elixir/mix.exs
index 7d4e1896f5..5e442a754c 100644
--- a/messages/elixir/mix.exs
+++ b/messages/elixir/mix.exs
@@ -27,7 +27,7 @@ defmodule CucumberMessages.MixProject do
 
   defp deps do
     [
-      {:protox, "~> 0.25.0"},
+      {:protox, "~> 1.0.0"},
       {:jason, "~> 1.2"},
       {:ex_doc, "~> 0.22", only: :dev, runtime: false}
     ]