diff --git a/requirements-test.txt b/requirements-test.txt
index 2fec69d..2dd6b1c 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -3,4 +3,4 @@ pytest-cov==2.11.*
 black==20.8b1
 isort==5.7.*
 flake8==3.8.*
-mypy==0.790
+mypy==0.901