diff --git a/tox.ini b/tox.ini
index 837616c3..f1c18690 100644
--- a/tox.ini
+++ b/tox.ini
@@ -11,7 +11,6 @@ labels =
     ci-test-windows = py{3.12, 3.9}-chardet
     update = update
 skip_missing_interpreters = True
-isolated_build = True
 min_version = 4.17.0