update mypy

The pypi package name has changed.

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 4a3999ac..7f3e7186 100644
--- a/setup.py
+++ b/setup.py
@@ -98,7 +98,7 @@ setup(
         'dev': [
             "Flask>=0.10.1, <0.13",
             "flake8>=3.2.1, <3.4",
-            "mypy-lang>=0.4.6, <0.5",
+            "mypy>=0.471, <0.480",
             "rstcheck>=2.2, <4.0",
             "tox>=2.3, <3",
             "pytest>=3, <3.1",