diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 71030e50074..b9b9c8babb9 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -36,7 +36,7 @@ env:
   CACHE_VERSION: 5
   PIP_CACHE_VERSION: 4
   MYPY_CACHE_VERSION: 6
-  HA_SHORT_VERSION: "2023.12"
+  HA_SHORT_VERSION: "2024.1"
   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 c6655ba3900..8da1c251b4e 100644
--- a/homeassistant/const.py
+++ b/homeassistant/const.py
@@ -5,8 +5,8 @@ from enum import StrEnum
 from typing import Final
 
 APPLICATION_NAME: Final = "HomeAssistant"
-MAJOR_VERSION: Final = 2023
-MINOR_VERSION: Final = 12
+MAJOR_VERSION: Final = 2024
+MINOR_VERSION: Final = 1
 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 71e58bf2177..844fac7142f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name        = "homeassistant"
-version     = "2023.12.0.dev0"
+version     = "2024.1.0.dev0"
 license     = {text = "Apache-2.0"}
 description = "Open-source home automation platform running on Python 3."
 readme      = "README.rst"