diff --git a/larus/mix.exs b/larus/mix.exs
--- a/larus/mix.exs
+++ b/larus/mix.exs
@@ -36,6 +36,7 @@
      {:phoenix_html, "~> 2.4"},
      {:phoenix_live_reload, "~> 1.0", only: :dev},
      {:gettext, "~> 0.9"},
+     {:dogma, "~> 0.1", only: :dev},
      {:cowboy, "~> 1.0"}]
   end