diff --git a/requirements_lint.txt b/requirements_lint.txt
index 9fae426..5098dd6 100644
--- a/requirements_lint.txt
+++ b/requirements_lint.txt
@@ -1,7 +1,7 @@
 black==22.10.0
 flake8==5.0.4
 isort==5.10.1
-mypy==0.982
+mypy==0.991
 pre-commit==2.20.0
 pydocstyle==6.1.1
 pylint==2.15.5