diff --git a/CHANGELOG.md b/CHANGELOG.md
index 17a21add..2bddfdde 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,25 @@
 
 
 
+## v5.1.1 (2024-11-09)
+
+### Documentation
+
+* docs: fix headline structure in readme
+
+Signed-off-by: Jan Kowalleck <jan.kowalleck@gmail.com> ([`74f07e1`](https://github.com/CycloneDX/cyclonedx-python/commit/74f07e16871b9ee5f9f7581edffa3af76b2b7ba6))
+
+### Fix
+
+* fix: schema-invalid CycloneDX when running PEP639 analysis (#828)
+
+fixes #826
+
+---------
+
+Signed-off-by: Jan Kowalleck <jan.kowalleck@gmail.com> ([`b2595cf`](https://github.com/CycloneDX/cyclonedx-python/commit/b2595cf829f57c0712394ae5f159af395b59c43e))
+
+
 ## v5.1.0 (2024-10-23)
 
 ### Feature
diff --git a/cyclonedx_py/__init__.py b/cyclonedx_py/__init__.py
index f54a9419..27267c08 100644
--- a/cyclonedx_py/__init__.py
+++ b/cyclonedx_py/__init__.py
@@ -17,7 +17,7 @@
 
 # !! version is managed by `semantic_release`
 # do not use typing here, or else `semantic_release` might have issues finding the variable
-__version__ = "5.1.0"  # noqa:Q000
+__version__ = "5.1.1"  # noqa:Q000
 
 # There is no stable/public API.
 # However, you might call the stable CLI instead, like so:
diff --git a/docs/conf.py b/docs/conf.py
index 51eb8ede..e4420310 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -24,7 +24,7 @@
 
 # The full version, including alpha/beta/rc tags
 # !! version is managed by semantic_release
-release = "5.1.0"
+release = "5.1.1"
 
 # -- General configuration ---------------------------------------------------
 
diff --git a/pyproject.toml b/pyproject.toml
index 3d18ab48..af6f6bd8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "cyclonedx-bom"
-version = "5.1.0"
+version = "5.1.1"
 description = "CycloneDX Software Bill of Materials (SBOM) generator for Python projects and environments"
 authors = [
   "Jan Kowalleck <jan.kowalleck@gmail.com>",