diff --git a/mix.exs b/mix.exs
index 251062e..0a61b8a 100644
--- a/mix.exs
+++ b/mix.exs
@@ -46,7 +46,7 @@ defmodule CSV.Mixfile do
 
   defp deps do
     [
-      {:dialyxir, "~> 1.0", only: [:dev, :test], runtime: false},
+      {:dialyxir, "~> 1.3.0", only: [:dev, :test], runtime: false},
       {:credo, "~> 1.6", only: [:dev, :test], runtime: false},
       {:excoveralls, "~> 0.15", only: :test},
       {:benchfella, ">= 0.0.0", only: :bench},