diff --git a/HISTORY.rst b/HISTORY.rst
index 35d7de3e..11e6d06e 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -3,6 +3,11 @@
 Release History
 ===============
 
+4.5.3
+++++++
+* Improve spec module loading performance to reduce module loading time. (#536)
+* Add loading states for async operations in the UI with visual loading indicators. (#533)
+
 4.5.2
 ++++++
 * Update items in the `/workspace` dir to be function-based React instead of class-based. (#523)
diff --git a/docs/_config.yml b/docs/_config.yml
index 55ded5e8..62bc1556 100644
--- a/docs/_config.yml
+++ b/docs/_config.yml
@@ -36,7 +36,7 @@ github:
 pypi: https://pypi.org/project/aaz-dev/
 
 # TODO: get version number from github
-version: v4.5.2
+version: v4.5.3
 
 # Build settings
 theme: minima
diff --git a/version.py b/version.py
index 892d5a62..378e3a63 100644
--- a/version.py
+++ b/version.py
@@ -1,5 +1,5 @@
 
-_MAJOR, _MINOR, _PATCH, _SUFFIX = ("4", "5", "2", "")
+_MAJOR, _MINOR, _PATCH, _SUFFIX = ("4", "5", "3", "")
 
 # _PATCH: On main and in a nightly release the patch should be one ahead of the last released build.
 # _SUFFIX: This is mainly for nightly builds which have the suffix ".dev$DATE". See