diff --git a/src/dependency_injector/providers.pyi b/src/dependency_injector/providers.pyi
index ae11f31f..ed9b5500 100644
--- a/src/dependency_injector/providers.pyi
+++ b/src/dependency_injector/providers.pyi
@@ -14,8 +14,6 @@ from typing import (
     Coroutine as _Coroutine,
 )
 
-from .types import Provider as _Provider
-
 
 Injection = Any
 T = TypeVar('T')
@@ -30,7 +28,7 @@ class OverridingContext:
 class Provider(Generic[T]):
     def __init__(self) -> None: ...
     def __call__(self, *args: Injection, **kwargs: Injection) -> T: ...
-    def __deepcopy__(self, memo: Optional[Dict[str, Any]]) -> Provider: ...
+    def __deepcopy__(self, memo: Optional[Dict[Any, Any]]) -> Provider: ...
     def __str__(self) -> str: ...
     def __repr__(self) -> str: ...
     @property
@@ -43,7 +41,7 @@ class Provider(Generic[T]):
     def delegate(self) -> Provider: ...
     @property
     def provider(self) -> Provider: ...
-    def _copy_overridings(self, copied: Provider, memo: Optional[Dict[str, Any]]) -> None: ...
+    def _copy_overridings(self, copied: Provider, memo: Optional[Dict[Any, Any]]) -> None: ...
 
 
 class Object(Provider, Generic[T]):
@@ -316,7 +314,7 @@ def is_delegated(instance: Any) -> bool: ...
 def represent_provider(provider: Provider, provides: Any) -> str: ...
 
 
-def deepcopy(instance: Any, memo: Optional[Dict[str, Any]]): Any: ...
+def deepcopy(instance: Any, memo: Optional[Dict[Any, Any]]): Any: ...
 
 
 def merge_dicts(dict1: Dict[Any, Any], dict2: Dict[Any, Any]) -> Dict[Any, Any]: ...
diff --git a/src/dependency_injector/types.py b/src/dependency_injector/types.py
index 205b57a4..a03e2353 100644
--- a/src/dependency_injector/types.py
+++ b/src/dependency_injector/types.py
@@ -3,13 +3,12 @@ import warnings
 
 
 warnings.warn(
-    message=(
-        'Types module is deprecated since version 3.44.0. Use "Provider" class from the '
-        '"providers" module: providers.Provider[SomeClass]'
-    ),
+    'Types module is deprecated since version 3.44.0. Use "providers" module instead: '
+    'providers.Provider[SomeClass]',
     category=DeprecationWarning,
 )
 
+
 Injection = Any
 T = TypeVar('T')
 
diff --git a/tests/unit/providers/test_base_py2_py3.py b/tests/unit/providers/test_base_py2_py3.py
index 1a31fff3..16e93c74 100644
--- a/tests/unit/providers/test_base_py2_py3.py
+++ b/tests/unit/providers/test_base_py2_py3.py
@@ -139,6 +139,11 @@ class ProviderTests(unittest.TestCase):
         self.assertIsNot(overriding_provider, overriding_provider_copy)
         self.assertIsInstance(overriding_provider_copy, providers.Provider)
 
+    def test_generic_type(self):
+        provider: providers.Provider[object] = providers.Factory(object)
+        some_object = provider()
+        self.assertIsInstance(some_object, object)
+
     def test_repr(self):
         self.assertEqual(repr(self.provider),
                          '<dependency_injector.providers.'
diff --git a/tests/unit/providers/test_types_py36.py b/tests/unit/providers/test_types_py36.py
deleted file mode 100644
index acaabb2a..00000000
--- a/tests/unit/providers/test_types_py36.py
+++ /dev/null
@@ -1,15 +0,0 @@
-import unittest
-
-from dependency_injector import providers
-
-
-class SomeClass:
-    ...
-
-
-class TypesTest(unittest.TestCase):
-
-    def test_provider(self):
-        provider: providers.Provider[SomeClass] = providers.Factory(SomeClass)
-        some_object = provider()
-        self.assertIsInstance(some_object, SomeClass)