diff --git a/tox.ini b/tox.ini
index 7ae84e4d..92f00deb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -16,6 +16,7 @@ python =
   3.10: py310
   3.11: py311
   3.12: py312
+  3.13: py313
 
 [gh-actions:env]
 DEPENDS =