diff --git a/pyproject.toml b/pyproject.toml
index d441731..f2d5ce9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ skip-magic-trailing-comma = true
 preview = true
 
 [tool.mypy]
-python_version = "3.7"
+python_version = "3.8"
 disallow_subclassing_any = false
 disallow_untyped_calls = false
 disallow_untyped_decorators = false