diff --git a/ghcr_badge/__init__.py b/ghcr_badge/__init__.py
index 2d40fd1..920f28e 100644
--- a/ghcr_badge/__init__.py
+++ b/ghcr_badge/__init__.py
@@ -2,6 +2,6 @@
 
 from .generate import GHCRBadgeGenerator
 
-__version__ = "0.3.3"
+__version__ = "0.4.0"
 
 __all__ = ["GHCRBadgeGenerator"]
diff --git a/pyproject.toml b/pyproject.toml
index d3c031c..ea59cf5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,10 +23,10 @@ packages = [{include = "ghcr_badge"}]
 license = "MIT"
 readme = "README.md"
 repository = "https://github.com/eggplants/ghcr-badge"
-version = "0.3.3"
+version = "0.4.0"
 
 [tool.poetry.dependencies]
-python = ">=3.8,<3.12"
+python = ">=3.8,<3.13"
 anybadge="^1.9.0"
 flask=">=2.1.2,<4.0.0"
 gunicorn=">=20.1,<22.0"