diff --git a/CHANGELOG.md b/CHANGELOG.md
index ece05a9..cda4d72 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+## [0.0.13]
+### Fixed
+  - nil implementation when running any GPG function
+
 ## [0.0.12]
 ### Added
   - function for listing keys on the system
diff --git a/mix.exs b/mix.exs
index 14172da..42a9e86 100644
--- a/mix.exs
+++ b/mix.exs
@@ -4,7 +4,7 @@ defmodule GPGMEx.MixProject do
   def project do
     [
       app: :gpgmex,
-      version: "0.0.12",
+      version: "0.0.13",
       elixir: "~> 1.12",
       package: package(),
       start_permanent: Mix.env() == :prod,