diff --git a/pyproject.toml b/pyproject.toml
index b6269d6..9fbcc98 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,6 +9,10 @@ description = "Async Python library for controlling Dimplex, Faber, and Real Fla
 readme = "README.md"
 license = "Apache-2.0"
 requires-python = ">=3.13"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.13",
+]
 dependencies = [
     "aiohttp>=3.13.3",
     "msal>=1.34.0",