diff --git a/ChangeLog.rst b/ChangeLog.rst
index 67ee24c..263d1f3 100644
--- a/ChangeLog.rst
+++ b/ChangeLog.rst
@@ -1,3 +1,9 @@
+0.5.5
+======
+
+* Fix memory leak in pure Python Unpacker.feed() (#283)
+* Fix unpack() didn't support `raw` option (#285)
+
 0.5.4
 ======
 
diff --git a/msgpack/_version.py b/msgpack/_version.py
index e7435d9..4035588 100644
--- a/msgpack/_version.py
+++ b/msgpack/_version.py
@@ -1 +1 @@
-version = (0, 5, 4)
+version = (0, 5, 5)