diff --git a/src/crewai/utilities/embedding_configurator.py b/src/crewai/utilities/embedding_configurator.py
index b2b033322..31b31a836 100644
--- a/src/crewai/utilities/embedding_configurator.py
+++ b/src/crewai/utilities/embedding_configurator.py
@@ -108,6 +108,7 @@ class EmbeddingConfigurator:
             from chromadb.utils.embedding_functions.google_embedding_function import (
                 GoogleVertexEmbeddingFunction,
             )
+            
             from crewai.utilities.embedding_functions import FixedGoogleVertexEmbeddingFunction
             
             return FixedGoogleVertexEmbeddingFunction(
diff --git a/src/crewai/utilities/embedding_functions.py b/src/crewai/utilities/embedding_functions.py
index b68ed819c..a0b43629f 100644
--- a/src/crewai/utilities/embedding_functions.py
+++ b/src/crewai/utilities/embedding_functions.py
@@ -1,10 +1,11 @@
-from typing import List, Any
+from typing import Any, List, Optional
+
+import requests
 from chromadb import Documents, Embeddings
 from chromadb.utils.embedding_functions.google_embedding_function import (
     GoogleVertexEmbeddingFunction,
 )
-import requests
-from urllib.parse import urlparse, parse_qs, urlencode, urlunparse
+from urllib.parse import parse_qs, urlencode, urlparse, urlunparse
 
 
 class FixedGoogleVertexEmbeddingFunction(GoogleVertexEmbeddingFunction):
@@ -17,7 +18,7 @@ class FixedGoogleVertexEmbeddingFunction(GoogleVertexEmbeddingFunction):
     
     def __init__(self, 
                 model_name: str = "textembedding-gecko", 
-                api_key: str = None,
+                api_key: Optional[str] = None,
                 **kwargs: Any):
         super().__init__(model_name=model_name, api_key=api_key, **kwargs)
         
diff --git a/tests/utilities/test_embedding_configurator.py b/tests/utilities/test_embedding_configurator.py
index 27244324c..4a25ba2eb 100644
--- a/tests/utilities/test_embedding_configurator.py
+++ b/tests/utilities/test_embedding_configurator.py
@@ -1,5 +1,5 @@
 import pytest
-from unittest.mock import patch, MagicMock
+from unittest.mock import MagicMock, patch
 
 from crewai.utilities.embedding_configurator import EmbeddingConfigurator
 from crewai.utilities.embedding_functions import FixedGoogleVertexEmbeddingFunction
diff --git a/tests/utilities/test_embedding_functions.py b/tests/utilities/test_embedding_functions.py
index 5e43b51f2..89039ac31 100644
--- a/tests/utilities/test_embedding_functions.py
+++ b/tests/utilities/test_embedding_functions.py
@@ -1,6 +1,6 @@
 import pytest
 import requests
-from unittest.mock import patch, MagicMock
+from unittest.mock import MagicMock, patch
 
 from crewai.utilities.embedding_functions import FixedGoogleVertexEmbeddingFunction