diff --git a/mix.exs b/mix.exs
index ddc3e78..0c852b1 100644
--- a/mix.exs
+++ b/mix.exs
@@ -37,7 +37,7 @@ defmodule Bencode.Mixfile do
   end
 
   defp deps do
-    [{:eqc_ex, "~> 1.3.0"},
+    [{:eqc_ex, "~> 1.3.1", only: [:dev, :test]},
      {:credo, "~> 0.6.1", only: [:dev, :test]}]
   end
 end
diff --git a/mix.lock b/mix.lock
index 292a71c..4c86361 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,3 +1,3 @@
 %{"bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], []},
   "credo": {:hex, :credo, "0.6.1", "a941e2591bd2bd2055dc92b810c174650b40b8290459c89a835af9d59ac4a5f8", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, optional: false]}]},
-  "eqc_ex": {:hex, :eqc_ex, "1.3.0", "04dc4481319d2e2ff1ce136507078cdbaf5a124d6a05ce32d5d642db28b053e4", [:mix], []}}
+  "eqc_ex": {:hex, :eqc_ex, "1.3.2", "a2a01442057db92de202cca9bd81e6581b50401af741c1b0cefc99d91d73fcfc", [:mix], []}}