diff --git a/pyproject.toml b/pyproject.toml
index 6439d8d..ed77845 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,6 +10,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Development Status :: 5 - Production/Stable",
     "Topic :: Text Processing :: Filters"
 ]