diff --git a/elixir/mix.exs b/elixir/mix.exs
index 5b8152e4..5738eada 100644
--- a/elixir/mix.exs
+++ b/elixir/mix.exs
@@ -25,7 +25,7 @@ defmodule CucumberMessages.MixProject do
 
   defp deps do
     [
-      {:protox, "~> 1.7"},
+      {:protox, "~> 2.0"},
       {:jason, "~> 1.4"},
       {:ex_doc, "~> 0.37", only: :dev, runtime: false}
     ]
diff --git a/elixir/mix.lock b/elixir/mix.lock
index c33d2d09..8de9d114 100644
--- a/elixir/mix.lock
+++ b/elixir/mix.lock
@@ -7,5 +7,5 @@
   "makeup_elixir": {:hex, :makeup_elixir, "1.0.1", "e928a4f984e795e41e3abd27bfc09f51db16ab8ba1aebdba2b3a575437efafc2", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "7284900d412a3e5cfd97fdaed4f5ed389b8f2b4cb49efc0eb3bd10e2febf9507"},
   "makeup_erlang": {:hex, :makeup_erlang, "1.0.2", "03e1804074b3aa64d5fad7aa64601ed0fb395337b982d9bcf04029d68d51b6a7", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "af33ff7ef368d5893e4a267933e7744e46ce3cf1f61e2dccf53a111ed3aa3727"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.4.2", "8efba0122db06df95bfaa78f791344a89352ba04baedd3849593bfce4d0dc1c6", [], [], "hexpm", "4b21398942dda052b403bbe1da991ccd03a053668d147d53fb8c4e0efe09c973"},
-  "protox": {:hex, :protox, "1.7.7", "9d45612d9df6af42622cf4c0e59a2973d374b47ad71461426778ea5393e7c59a", [:mix], [{:decimal, "~> 1.9 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.2", [hex: :jason, repo: "hexpm", optional: true]}, {:poison, "~> 4.0 or ~> 5.0 or ~> 6.0", [hex: :poison, repo: "hexpm", optional: true]}], "hexpm", "cb45daa3f7c6b758e03f2705c15d08236109db330fd88ff2bf25a9c070757e1e"},
+  "protox": {:hex, :protox, "2.0.2", "bc92681844e2c0834cdac93194c9a093a0dd148a41079a268cfe125dc7e97ebf", [:mix], [], "hexpm", "3df60f610a10c52b51c9c40a599196d16653edf94e0070fe3097d6dcc4420873"},
 }