diff --git a/runtests.py b/runtests.py
index a5c30e11a..7dbe9eb7c 100755
--- a/runtests.py
+++ b/runtests.py
@@ -22,7 +22,7 @@ ISORT_ARGS = [
     "tests",
 ]
 
-BLACK_ARGS = ["--check", "--verbose"]
+BLACK_ARGS = ["--check"]
 
 
 def exit_on_failure(ret, message=None):
diff --git a/tox.ini b/tox.ini
index 5d7a4987e..37464390a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -44,7 +44,7 @@ deps =
         -rrequirements/requirements-optionals.txt
 
 [testenv:lint]
-basepython = python2.7
+basepython = python3.7
 commands = ./runtests.py --lintonly
 deps =
         -rrequirements/requirements-codestyle.txt