diff --git a/pyproject.toml b/pyproject.toml
index 01436d32..ea67a267 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,6 +21,7 @@ classifiers = [
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
   "Topic :: Software Development :: Libraries",
   "Topic :: Utilities",
 ]