diff --git a/mix.exs b/mix.exs
index c9bbdfcf..5c9b1a2b 100644
--- a/mix.exs
+++ b/mix.exs
@@ -44,7 +44,7 @@ defmodule Protox.Mixfile do
       {:dialyxir, "~> 1.0", only: [:test, :dev], runtime: false},
       {:excoveralls, "~> 0.13", only: [:test], runtime: false},
       {:ex_doc, "~> 0.22", only: [:dev], runtime: false},
-      {:muex, "~> 0.6.1", only: [:dev, :test], runtime: false},
+      {:muex, "~> 0.8.1", only: [:dev, :test], runtime: false},
       {:stream_data, "~> 1.0", only: [:dev, :test], runtime: false},
       {:quokka, "~> 2.0", only: [:dev, :test], runtime: false}
     ]
diff --git a/mix.lock b/mix.lock
index 67c30856..1b9301e1 100644
--- a/mix.lock
+++ b/mix.lock
@@ -13,7 +13,7 @@
   "makeup": {:hex, :makeup, "1.2.1", "e90ac1c65589ef354378def3ba19d401e739ee7ee06fb47f94c687016e3713d1", [:mix], [{:nimble_parsec, "~> 1.4", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "d36484867b0bae0fea568d10131197a4c2e47056a6fbe84922bf6ba71c8d17ce"},
   "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, "1.1.0", "835f7e60792e08824cda445639555d7bf1bbbddb1b60b306e33cb6f6db24dc74", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "1cd6780fb1dd1a03979abaed0fe82712b0625118fd5257d3ebbf73f960c73c3c"},
-  "muex": {:hex, :muex, "0.6.1", "612df305e62bc21aa0c526cc741841889a7d4b024f839f3bdeff77d670a40109", [:mix], [{:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "4ac92066ea3a9f887662f2af2477777ea716a533d59987e9a49dd3f7bd909777"},
+  "muex": {:hex, :muex, "0.8.1", "31ad59533a108ba647290404cf1966dd5aec672eef0df67ead5fcdd63d36a0cc", [:mix], [{:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "f9a4eb3fde61e8d22dc632c92b6778b840f57f6f97531dcf72a32c86b2ba4dd0"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.4.2", "8efba0122db06df95bfaa78f791344a89352ba04baedd3849593bfce4d0dc1c6", [:mix], [], "hexpm", "4b21398942dda052b403bbe1da991ccd03a053668d147d53fb8c4e0efe09c973"},
   "protobuf": {:git, "https://github.com/protocolbuffers/protobuf.git", "4b0c3aacf0657fbf38253b38918d3358dd4319ec", [tag: "v34.1", submodules: true]},
   "quokka": {:hex, :quokka, "2.13.1", "10851ba49ce47cb65cb74b252fd7bfb8f9f78d6a0b1908228f1dae4b65c32939", [:mix], [{:credo, "~> 1.7", [hex: :credo, repo: "hexpm", optional: false]}], "hexpm", "f6b3c60d333f76e5e131b9d4b55aed50e989589ee4cb3dc646176ceec26bf0f5"},