diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e0b76ad..c956cfe0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,15 @@
 
 
 
+## v4.3.4-alpha.1 (2024-04-21)
+
+### Unknown
+
+* Update release.yml
+
+Signed-off-by: Jan Kowalleck <jan.kowalleck@gmail.com> ([`c48096b`](https://github.com/CycloneDX/cyclonedx-python/commit/c48096bcc227b73b96f22e5957ecc263da2c806e))
+
+
 ## v4.3.3-alpha.1 (2024-04-21)
 
 ### Unknown
diff --git a/cyclonedx_py/__init__.py b/cyclonedx_py/__init__.py
index 6cee7c7c..1ec1dca7 100644
--- a/cyclonedx_py/__init__.py
+++ b/cyclonedx_py/__init__.py
@@ -15,7 +15,7 @@
 
 # !! version is managed by `semantic_release`
 # do not use typing here, or else `semantic_release` might have issues finding the variable
-__version__ = "4.3.3-alpha.1"  # noqa:Q000
+__version__ = "4.3.4-alpha.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 aec0a4cb..5e2701fa 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -22,7 +22,7 @@
 
 # The full version, including alpha/beta/rc tags
 # !! version is managed by semantic_release
-release = "4.3.3-alpha.1"
+release = "4.3.4-alpha.1"
 
 # -- General configuration ---------------------------------------------------
 
diff --git a/pyproject.toml b/pyproject.toml
index af40c394..e97b0e37 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ build-backend = "poetry.core.masonry.api"
 [tool.poetry]
 # keep in sync with `cyclonedx_py/_internal/utils/cdx.py`
 name = "cyclonedx-bom"
-version = "4.3.3-alpha.1"
+version = "4.3.4-alpha.1"
 description = "CycloneDX Software Bill of Materials (SBOM) generator for Python projects and environments"
 authors = [
   "Jan Kowalleck <jan.kowalleck@gmail.com>",