diff --git a/tox.ini b/tox.ini
index 7ef951a..429fdaa 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,8 +5,8 @@
 
 [tox]
 envlist =
-    py311
     py312
+    py313
 
 [testenv]
 description = run test suite