diff --git a/akka-docs/rst/java/serialization.rst b/akka-docs/rst/java/serialization.rst
index 8f304d6d49..109752bd77 100644
--- a/akka-docs/rst/java/serialization.rst
+++ b/akka-docs/rst/java/serialization.rst
@@ -222,4 +222,4 @@ External Akka Serializers
 `Akka-kryo by Roman Levenstein <https://github.com/romix/akka-kryo-serialization>`_
 
 
-`Twitter Chill Scala extensions for Kryo <https://github.com/twitter/chill>`
+`Twitter Chill Scala extensions for Kryo (based on Akka Version 2.3.x but due to backwards compatibility of the Serializer Interface this extension also works with 2.4.x) <https://github.com/twitter/chill>`_
diff --git a/akka-docs/rst/scala/serialization.rst b/akka-docs/rst/scala/serialization.rst
index 478b45904e..e4ebfecbc8 100644
--- a/akka-docs/rst/scala/serialization.rst
+++ b/akka-docs/rst/scala/serialization.rst
@@ -212,4 +212,4 @@ External Akka Serializers
 `Akka-kryo by Roman Levenstein <https://github.com/romix/akka-kryo-serialization>`_
 
 
-`Twitter Chill Scala extensions for Kryo <https://github.com/twitter/chill>`_
+`Twitter Chill Scala extensions for Kryo (based on Akka Version 2.3.x but due to backwards compatibility of the Serializer Interface this extension also works with 2.4.x) <https://github.com/twitter/chill>`_