diff --git a/requirements-dev.txt b/requirements-dev.txt
index 6fbe581a5..b0f970224 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,7 +7,7 @@ coveralls==3.1.0
 flake8==3.9.2
 flake8-type-annotations==0.1.0
 flake8-tidy-imports==4.3.0
-mypy==0.812
+mypy==0.902
 pytest==6.2.4
 pytest-asyncio==0.15.1
 pytest-cov==2.12.1