diff --git a/pyproject.toml b/pyproject.toml
index 019175d..aa35e11 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ pytest = "^5.4.1"
 black = "^19.10b0"
 isort = "^4.3.21"
 autoflake = "^1.3.1"
-mypy = "^0.770"
+mypy = "^0.971"
 
 [build-system]
 requires = ["poetry>=0.12"]