diff --git a/requirements-test.txt b/requirements-test.txt
index 7834b15..90c83e1 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -4,4 +4,4 @@ pytest-cov==2.11.1
 black==20.8b1
 flake8==3.8.4
 isort[pipfile]==5.7.0
-mypy==0.790
+mypy==0.901