diff --git a/tox.ini b/tox.ini
index 99cabae..d95597f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,4 +1,5 @@
 [tox]
+isolated_build = true
 envlist = py37,py38,py39,mypy,pylint
 
 [gh-actions]