diff --git a/requirements-test.txt b/requirements-test.txt
index 9b43c9c..8f46a21 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -4,4 +4,4 @@ pytest-cov==3.0.0
 black==21.12b0
 flake8==4.0.1
 isort[pipfile]==5.10.1
-mypy==0.790
+mypy==0.921