diff --git a/README.md b/README.md
index bd9f66e..cc71da9 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ To add it to a mix project, just add a line like this in your deps function in m
 ```elixir
 defp deps do
   [
-    {:dialyxir, "~> 1.3", only: [:dev], runtime: false},
+    {:dialyxir, "~> 1.4", only: [:dev, :test], runtime: false},
   ]
 end
 ```