diff --git a/README.md b/README.md
index 77c6b35c..91b0da6f 100644
--- a/README.md
+++ b/README.md
@@ -102,6 +102,10 @@ and by [Jeroen De Dauw](https://www.mediawiki.org/wiki/User:Jeroen_De_Dauw) as [
 
 ## Release notes
 
+### 1.1.1 (2014-09-09)
+
+* Use UnDeserializable error from serialization in SnakDeserializer
+
 ### 1.1.0 (2014-09-02)
 
 * Compatibility with DataModel 1.x was added