diff --git a/mypy.ini b/mypy.ini
index a4b98cc..db30524 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -13,4 +13,5 @@
   warn_unused_ignores = False
   warn_return_any = True
   strict_equality = True
-  ignore_missing_imports = True
\ No newline at end of file
+  ignore_missing_imports = True
+  no_implicit_optional = False
\ No newline at end of file