diff --git a/setup.py b/setup.py
index 7f715f4b..1842129e 100755
--- a/setup.py
+++ b/setup.py
@@ -33,5 +33,6 @@
           "Programming Language :: Python :: 3.10",
           "Programming Language :: Python :: 3.11",
           "Programming Language :: Python :: 3.12",
+          "Programming Language :: Python :: 3.13",
           "Programming Language :: Python :: Implementation :: CPython",
           "Programming Language :: Python :: Implementation :: PyPy"])
diff --git a/tox.ini b/tox.ini
index bbe28c2e..a97b1899 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,6 +5,7 @@ envlist =
     py310
     py311
     py312
+    py313
     pypy3
 
 skip_missing_interpreters = true