diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 7a5c3efd1cb..29f0c9ee5d8 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -37,7 +37,7 @@ env:
   PIP_CACHE_VERSION: 4
   MYPY_CACHE_VERSION: 5
   BLACK_CACHE_VERSION: 1
-  HA_SHORT_VERSION: "2023.11"
+  HA_SHORT_VERSION: "2023.12"
   DEFAULT_PYTHON: "3.11"
   ALL_PYTHON_VERSIONS: "['3.11', '3.12']"
   # 10.3 is the oldest supported version
diff --git a/homeassistant/const.py b/homeassistant/const.py
index 77c5582464e..c6655ba3900 100644
--- a/homeassistant/const.py
+++ b/homeassistant/const.py
@@ -6,7 +6,7 @@ from typing import Final
 
 APPLICATION_NAME: Final = "HomeAssistant"
 MAJOR_VERSION: Final = 2023
-MINOR_VERSION: Final = 11
+MINOR_VERSION: Final = 12
 PATCH_VERSION: Final = "0.dev0"
 __short_version__: Final = f"{MAJOR_VERSION}.{MINOR_VERSION}"
 __version__: Final = f"{__short_version__}.{PATCH_VERSION}"
diff --git a/pyproject.toml b/pyproject.toml
index 82bb7d08e26..235e41a7cca 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name        = "homeassistant"
-version     = "2023.11.0.dev0"
+version     = "2023.12.0.dev0"
 license     = {text = "Apache-2.0"}
 description = "Open-source home automation platform running on Python 3."
 readme      = "README.rst"