diff --git a/mix.exs b/mix.exs
index 21446c9..4bc0f34 100644
--- a/mix.exs
+++ b/mix.exs
@@ -46,7 +46,7 @@ defmodule ExCell.Mixfile do
 
   defp deps do
     [
-      {:credo, "~> 0.10", only: [:dev, :test], runtime: false},
+      {:credo, "~> 1.0", only: [:dev, :test], runtime: false},
       {:dialyxir, "~> 0.5", only: [:dev, :test]},
       {:ex_doc, ">= 0.0.0", only: [:dev, :test]},
       {:excoveralls, "~> 0.7", only: :test},
diff --git a/mix.lock b/mix.lock
index 4b3da47..efbe3cc 100644
--- a/mix.lock
+++ b/mix.lock
@@ -2,7 +2,7 @@
   "apex": {:hex, :apex, "1.0.0", "abf230314d35ca4c48a902f693247f190ad42fc14862b9c4f7dbb7077b21c20a", [], [], "hexpm"},
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [], [], "hexpm"},
   "certifi": {:hex, :certifi, "2.4.2", "75424ff0f3baaccfd34b1214184b6ef616d89e420b258bb0a5ea7d7bc628f7f0", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm"},
-  "credo": {:hex, :credo, "0.10.0", "66234a95effaf9067edb19fc5d0cd5c6b461ad841baac42467afed96c78e5e9e", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
+  "credo": {:hex, :credo, "1.0.0", "aaa40fdd0543a0cf8080e8c5949d8c25f0a24e4fc8c1d83d06c388f5e5e0ea42", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
   "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [], [], "hexpm"},
   "earmark": {:hex, :earmark, "1.2.6", "b6da42b3831458d3ecc57314dff3051b080b9b2be88c2e5aa41cd642a5b044ed", [:mix], [], "hexpm"},
   "ex_doc": {:hex, :ex_doc, "0.19.1", "519bb9c19526ca51d326c060cb1778d4a9056b190086a8c6c115828eaccea6cf", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.7", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},