diff --git a/requirements-dev.txt b/requirements-dev.txt
index 8fd73df0c..2c1ae906d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,7 +7,7 @@ coveralls==1.8.2
 flake8==3.7.8
 flake8-type-annotations==0.1.0
 flake8-tidy-imports==2.0.0
-mypy==0.720
+mypy==0.730
 pytest==5.2.0
 pytest-asyncio==0.10.0
 pytest-cov==2.7.1