diff --git a/mix.exs b/mix.exs
index 8378087..482274a 100644
--- a/mix.exs
+++ b/mix.exs
@@ -38,6 +38,7 @@ defmodule TestcontainersElixir.MixProject do
   defp deps do
     [
       {:ex_docker_engine_api, "~> 1.43"},
+      {:ex_doc, "~> 0.30", only: :dev, runtime: false},
       {:myxql, "~> 0.6.0", only: [:dev, :test]},
       {:postgrex, "~> 0.17", only: [:dev, :test]},
       {:redix, "~> 1.2", only: [:dev, :test]}