diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 6434b99..4e2f2fc 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,13 @@
 Changelog
 =========
 
+0.7.3 (2018-09-04)
+------------------
+
+Changed
+^^^^^^^
+* Update setup.py to use  ``PyNaCl~=1.2.1``
+
 0.7.2 (2018-08-31)
 ------------------
 
diff --git a/cryptoconditions/version.py b/cryptoconditions/version.py
index 04ef959..83744cd 100644
--- a/cryptoconditions/version.py
+++ b/cryptoconditions/version.py
@@ -1,2 +1,2 @@
-__version__ = '0.7.2'
+__version__ = '0.7.3'
 __short_version__ = '0.7'