diff --git a/tox.ini b/tox.ini
index 8e161d7..263b570 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,7 +25,6 @@ deps =
     pytest >=4, <8; python_version<'3.10'
     pytest >=6.2.4, <8; python_version>='3.10'
     pytest-cov
-    six
     requests
 extras =
     smtp: smtp