diff --git a/pyproject.toml b/pyproject.toml
index 322a0dfff..2a035450f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -201,6 +201,9 @@ disable = [
     "too-many-ancestors",  # Easy to hit when using Django
 ]
 
+[tool.mypy]
+exclude = "build/"
+
 # Ignore missing type stubs for some libraries. Try to keep this list minimal
 # and use type annotations where available.
 [[tool.mypy.overrides]]