diff --git a/CHANGELOG.md b/CHANGELOG.md
index cfd116d6e..f7643b2df 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,9 +25,15 @@ LDAP Auth
 
 PG Auth
 
-Mnesia ACL 
+Mnesia ACL
 
-MySQL ACL 
+MySQL ACL
+
+
+v0.5.1-alpha (2015-03-13)
+-------------------------
+
+Change: upgrade esockd to v1.2.0-beta, rename 'acceptor_pool' to 'acceptors'
 
 
 v0.5.0-alpha (2015-03-12)