diff --git a/mix.exs b/mix.exs
index 3f201c6..5177787 100644
--- a/mix.exs
+++ b/mix.exs
@@ -38,7 +38,7 @@ defmodule PCA9685.MixProject do
     [
       {:elixir_ale, "~> 1.2"},
       {:ex_doc, ">= 0.0.0", only: ~w[dev test]a},
-      {:credo, "~> 1.1", only: ~w[dev test]a, runtime: false},
+      {:credo, "~> 1.6", only: ~w[dev test]a, runtime: false},
       {:git_ops, "~> 2.3", only: ~w[dev test]a, runtime: false}
     ]
   end