diff --git a/litellm/main.py b/litellm/main.py
index ee9c9a423..16d6bd29d 100644
--- a/litellm/main.py
+++ b/litellm/main.py
@@ -105,7 +105,7 @@ async def acompletion(*args, **kwargs):
     else:
         return response
 
-def mock_completion(model: str, messages: List, stream: bool = False, mock_response: str = "This is a mock request", **kwargs):
+def mock_completion(model: str, messages: List, stream: Optional[bool] = False, mock_response: str = "This is a mock request", **kwargs):
     """
     Generate a mock completion response for testing or debugging purposes.
 
diff --git a/pyproject.toml b/pyproject.toml
index cc845f058..44398321a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "litellm"
-version = "0.1.810"
+version = "0.1.811"
 description = "Library to easily interface with LLM API providers"
 authors = ["BerriAI"]
 license = "MIT License"