diff --git a/tox.ini b/tox.ini
index 8a873fa7b9acb8360d9244bdaf86dfa1c068e5a1..19a981b3e23d144091bcb48f01f0d99c88767695 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,6 +2,8 @@
 [tox]
 envlist = py3
 skipsdist = True
+minversion = 3.2.0
+requires = virtualenv >= 16.1
 
 [gh-actions]
 python =