diff --git a/tox.ini b/tox.ini
index 412d7dbc..703eda93 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,9 +1,9 @@
 [tox]
-envlist = py38,py39,py310,py311,py312
+envlist = py3{13,12,11,10,9,8},pypy3{10,9,8}
+skip_missing_interpreters = true
 
 [testenv]
 deps =
     pytest
 commands =
-    pytest
-
+    pytest {posargs}