diff --git a/HISTORY.rst b/HISTORY.rst
index 169d69dc..285d3da6 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -3,6 +3,13 @@
 Release History
 ===============
 
+4.5.1
+++++++
+* Fix validation of schema pattern and error message. (#507)
+* Fix redundant url item within example generation request. (#524)
+* Upgrade `@typespec/compiler` to 1.4.0. (#522)
+* Update the document for generating codes via command-line interface. (#521)
+
 4.5.0
 ++++++
 * Add `generate_all` command functionality for CLI generation. (#516)
diff --git a/docs/_config.yml b/docs/_config.yml
index 6b97efe1..aaced0f9 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: v4.5.0
+version: v4.5.1
 
 # Build settings
 theme: minima
diff --git a/version.py b/version.py
index 92a78775..f782824c 100644
--- a/version.py
+++ b/version.py
@@ -1,5 +1,5 @@
 
-_MAJOR, _MINOR, _PATCH, _SUFFIX = ("4", "5", "0", "")
+_MAJOR, _MINOR, _PATCH, _SUFFIX = ("4", "5", "1", "")
 
 # _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