diff --git a/tox.ini b/tox.ini
index 37464390a..eabae487d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -44,7 +44,7 @@ deps =
         -rrequirements/requirements-optionals.txt
 
 [testenv:lint]
-basepython = python3.7
+basepython = python3.6
 commands = ./runtests.py --lintonly
 deps =
         -rrequirements/requirements-codestyle.txt