diff --git a/openbb_sdk/sdk/core/openbb_core/app/model/abstract/singleton.py b/openbb_sdk/sdk/core/openbb_core/app/model/abstract/singleton.py
index 39270925bac..6cfc4e74e43 100644
--- a/openbb_sdk/sdk/core/openbb_core/app/model/abstract/singleton.py
+++ b/openbb_sdk/sdk/core/openbb_core/app/model/abstract/singleton.py
@@ -1,6 +1,9 @@
+from typing import Dict
+
+
 class SingletonMeta(type):
     # TODO : check if we want to update this to be thread safe
-    _instances = {}
+    _instances: Dict[object, object] = {}
 
     def __call__(cls, *args, **kwargs):
         if cls not in cls._instances:
diff --git a/openbb_sdk/sdk/provider/openbb_provider/abstract/provider.py b/openbb_sdk/sdk/provider/openbb_provider/abstract/provider.py
index b56653d089d..8ca211c31f9 100644
--- a/openbb_sdk/sdk/provider/openbb_provider/abstract/provider.py
+++ b/openbb_sdk/sdk/provider/openbb_provider/abstract/provider.py
@@ -1,6 +1,6 @@
 """Abstract class for providers."""
 
-from typing import Dict, List, Optional
+from typing import Dict, List, Optional, Type
 
 from openbb_provider.abstract.fetcher import Fetcher
 
@@ -13,7 +13,7 @@ class Provider:
         name: str,
         description: str,
         required_credentials: Optional[List[str]],
-        fetcher_dict: Dict[str, Fetcher],
+        fetcher_dict: Dict[str, Type[Fetcher]],
     ) -> None:
         """Initialize the provider."""
         self.name = name