Fix mypy violations (with mypy-0.920)

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 3dbc8746b..8245aacef 100644
--- a/setup.py
+++ b/setup.py
@@ -44,7 +44,7 @@ extras_require = {
     'lint': [
         'flake8>=3.5.0',
         'isort',
-        'mypy>=0.900',
+        'mypy>=0.920',
         'docutils-stubs',
         "types-typed-ast",
         "types-pkg_resources",