diff --git a/RELEASE_NOTES.rst b/RELEASE_NOTES.rst
index 6b991c7b..2f48f25e 100644
--- a/RELEASE_NOTES.rst
+++ b/RELEASE_NOTES.rst
@@ -17,6 +17,10 @@ Upcoming Release
    To use the features already you have to install the ``master`` branch, e.g.
    ``pip install git+https://github.com/pypsa/atlite``.
 
+**Features**
+
+* Add support for Python 3.14.
+
 **Bug fixes**
 
 * Fix ``ExclusionContainer.add_raster`` ignoring ``codes=0``. The code ``0`` was
diff --git a/pyproject.toml b/pyproject.toml
index e176e0a2..73ea9844 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,6 +17,7 @@ classifiers=[
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Development Status :: 3 - Alpha",
     "Environment :: Console",
     "Intended Audience :: Science/Research",