diff --git a/django-stubs/contrib/auth/base_user.pyi b/django-stubs/contrib/auth/base_user.pyi
index 1cbcac1..b74fd9e 100644
--- a/django-stubs/contrib/auth/base_user.pyi
+++ b/django-stubs/contrib/auth/base_user.pyi
@@ -29,7 +29,7 @@ class AbstractBaseUser(models.Model):
     def is_anonymous(self) -> Literal[False]: ...
     @property
     def is_authenticated(self) -> Literal[True]: ...
-    def set_password(self, raw_password: Optional[str]) -> None: ...
+    def set_password(self, raw_password: str) -> None: ...
     def check_password(self, raw_password: str) -> bool: ...
     def set_unusable_password(self) -> None: ...
     def has_usable_password(self) -> bool: ...