diff --git a/requirements-test.txt b/requirements-test.txt
index e9c330a..a0c9fb0 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -2,7 +2,7 @@
 asynctest~=0.13
 flake8~=3.9
 flake8-docstrings~=1.6
-mypy==0.812
+mypy==0.901
 pylint~=2.8
 pylint-strict-informational==0.1
 pytest~=6.2