diff --git a/docs/changelog.rst b/docs/changelog.rst
index 71f8e514..c458ec65 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -2,6 +2,7 @@
 Changelog
 =========
 
+
 Changes in dev
 ==============
 
@@ -10,6 +11,11 @@ Changes in dev
 - Fixed ListField so it doesnt accept strings
 - Added DynamicDocument and EmbeddedDynamicDocument classes for expando schemas
 
+Changes in v0.5.1
+=================
+
+- Circular reference bugfix
+
 Changes in v0.5
 ===============
 
diff --git a/mongoengine/__init__.py b/mongoengine/__init__.py
index dd3c517e..48d2742a 100644
--- a/mongoengine/__init__.py
+++ b/mongoengine/__init__.py
@@ -14,7 +14,7 @@ __all__ = (document.__all__ + fields.__all__ + connection.__all__ +
 
 __author__ = 'Harry Marr'
 
-VERSION = (0, 5, 0)
+VERSION = (0, 5, 1)
 
 
 def get_version():