diff --git a/deepface/models/facial_recognition/Buffalo_L.py b/deepface/models/facial_recognition/Buffalo_L.py
index 32ab9f3..5f27110 100644
--- a/deepface/models/facial_recognition/Buffalo_L.py
+++ b/deepface/models/facial_recognition/Buffalo_L.py
@@ -23,8 +23,9 @@ class Buffalo_L(FacialRecognition):
             from insightface.model_zoo import get_model
         except ModuleNotFoundError as err:
             raise ModuleNotFoundError(
-                "InsightFace is an optional dependency for the Buffalo_L model."
-                "You can install it with: pip install insightface>=0.7.3"
+                "InsightFace and its dependencies are optional for the Buffalo_L model. "
+                "Please install them with: "
+                "pip install insightface>=0.7.3 onnxruntime>=1.9.0 typing-extensions pydantic"
             ) from err
 
         # Define the model filename and subdirectory
diff --git a/requirements_additional.txt b/requirements_additional.txt
index 94d82dd..dd30b95 100644
--- a/requirements_additional.txt
+++ b/requirements_additional.txt
@@ -6,4 +6,6 @@ facenet-pytorch>=2.5.3
 torch>=2.1.2
 insightface>=0.7.3
 onnxruntime>=1.9.0
-tf-keras
\ No newline at end of file
+tf-keras
+typing-extensions
+pydantic
\ No newline at end of file