diff --git a/README.md b/README.md
index c006b82fad..7ed8fc0219 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 [![EUPL](https://img.shields.io/badge/license-EUPL%201.2-brightgreen.svg)](https://joinup.ec.europa.eu/collection/eupl/eupl-text-11-12)
-[![Build Status](https://travis-ci.org/robstoll/atrium.svg?branch=master)](https://travis-ci.org/robstoll/atrium/branches)
-[![Coverage](https://codecov.io/github/robstoll/atrium/coverage.svg?branch=master)](https://codecov.io/github/robstoll/atrium?branch=master)
+[![Build Status](https://travis-ci.org/robstoll/atrium.svg?tag=v0.4.0)](https://travis-ci.org/robstoll/atrium/branches)
+[![Coverage](https://codecov.io/github/robstoll/atrium/coverage.svg?tag=v0.4.0)](https://codecov.io/github/robstoll/atrium?tag=v0.4.0)
 
 # Atrium
 Atrium is an open-source assertion library for Kotlin with a fluent API.
diff --git a/build.gradle b/build.gradle
index 233ab49162..1ce9b131ef 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,8 +1,8 @@
 buildscript {
     def projectsWithoutSourcesBuildScript = project(":${project.name}-cc-en_UK-robstoll")
     ext {
-        atrium_version = '0.4.0-SNAPSHOT'
-        ghPages_version = '0.4.0-SNAPSHOT'
+        atrium_version = '0.4.0'
+        ghPages_version = '0.4.0'
         kbox_version = '0.0.1'
         kotlin_version = '1.2.0'
         mockito_kotlin_version = '1.5.0'