diff --git a/DESCRIPTION b/DESCRIPTION
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--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,5 +1,5 @@
 Package: tailr
-Version: 0.1.3
+Version: 0.1.3.9000
 Title: Automatic Tail Recursion Optimisation
 Description: Implements meta-programming functions for automatically
     translating recursive functions into looping functions or trampolines.
diff --git a/README.Rmd b/README.Rmd
index b68d8d0..77e7cfa 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -18,7 +18,7 @@ knitr::opts_chunk$set(
 [![lifecycle](https://img.shields.io/badge/lifecycle-maturing-blue.svg)](https://www.tidyverse.org/lifecycle/#maturing)
 [![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](http://www.repostatus.org/badges/latest/active.svg)](http://www.repostatus.org/#active)
 [![Last-changedate](https://img.shields.io/badge/last%20change-`r gsub('-', '--', Sys.Date())`-green.svg)](/commits/master)
-[![packageversion](https://img.shields.io/badge/Package%20version-0.1.2.9000-green.svg?style=flat-square)](commits/master)
+[![packageversion](https://img.shields.io/badge/Package%20version-0.1.3.9000-green.svg?style=flat-square)](commits/master)
 [![Travis build status](https://travis-ci.org/mailund/tailr.svg?branch=master)](https://travis-ci.org/mailund/tailr)
 [![Appveyor build status](https://ci.appveyor.com/api/projects/status/1d36yh8klursko82/branch/master?svg=true)](https://ci.appveyor.com/project/mailund/tailr/branch/master)
 [![Coverage status](https://codecov.io/gh/mailund/tailr/branch/master/graph/badge.svg)](https://codecov.io/github/mailund/tailr?branch=master)
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