diff --git a/pyproject.toml b/pyproject.toml
index 4e6738fe186ffd6239cd21d5ecd0baeaf998eb41..0b8ee1da565b97659a3f4b2eb3889ef6111563fd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,3 +47,4 @@ skip = ["src/_zkapauthorizer/_version.py"]
 [tool.mypy]
 namespace_packages = true
 plugins = "mypy_zope:plugin"
+ignore_missing_imports = true