diff --git a/HISTORY.rst b/HISTORY.rst
index e5d34bca..73d8df87 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -2,6 +2,13 @@
 
 Release History
 ===============
+1.6.4 (2023-02-09)
++++++++++++++++++++
+
+- Updated OpenSSL dependency to 1.1.1t
+- Updated submodules to support OpenSSL 3.0 compilation
+- Removed dependency on six 
+- Fixed a bug that caused the wrong port to selected for websockets when a port was not passed in
 
 1.6.3 (2022-10-27)
 +++++++++++++++++++
diff --git a/uamqp/__init__.py b/uamqp/__init__.py
index 81d53519..b18d1a31 100644
--- a/uamqp/__init__.py
+++ b/uamqp/__init__.py
@@ -35,7 +35,7 @@
     pass  # Async not supported.
 
 
-__version__ = "1.6.3"
+__version__ = "1.6.4"
 
 
 _logger = logging.getLogger(__name__)