diff --git a/src/dependency_injector/providers.pyi b/src/dependency_injector/providers.pyi
index 53052c76..2b8b6855 100644
--- a/src/dependency_injector/providers.pyi
+++ b/src/dependency_injector/providers.pyi
@@ -59,7 +59,7 @@ class Delegate(Provider):
 
 
 class Dependency(Provider, Generic[T]):
-    def __init__(self, instance_of: Type[T]) -> None: ...
+    def __init__(self, instance_of: Type[T] = object) -> None: ...
     def __call__(self, *args: Injection, **kwargs: Injection) -> T: ...
     @property
     def provided(self) -> ProvidedInstance: ...