diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b5a83f8..27f936ce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,7 @@
 # Change Log
 
+## [4.0.1](https://github.com/deltaDNA/android-sdk/releases/tag/4.0.1) (2016-03-18)
+Fixed events not being sent correctly.
+
 ## [4.0.0](https://github.com/deltaDNA/android-sdk/releases/tag/4.0.0) (2016-03-16)
 Initial version 4.0 release.
diff --git a/README.md b/README.md
index b49c7e85..d42aa3cb 100644
--- a/README.md
+++ b/README.md
@@ -54,7 +54,7 @@ allprojects {
 ```
 In your app's build script
 ```groovy
-compile 'com.deltadna.android:deltadna-sdk:4.0.0'
+compile 'com.deltadna.android:deltadna-sdk:4.0.1'
 ```
 
 ## Initialising
diff --git a/gradle.properties b/gradle.properties
index e7447d79..87c957d9 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 GROUP=com.deltadna.android
-VERSION_NAME=4.0.0
+VERSION_NAME=4.0.1
 
 POM_DESCRIPTION=deltaDNA SDK for Android
 POM_URL=https://github.com/deltaDNA/android-sdk