diff --git a/docs/components/vectordbs/dbs/mongodb.mdx b/docs/components/vectordbs/dbs/mongodb.mdx
index 216c0436..3fea21c3 100644
--- a/docs/components/vectordbs/dbs/mongodb.mdx
+++ b/docs/components/vectordbs/dbs/mongodb.mdx
@@ -16,8 +16,7 @@ config = {
         "config": {
             "db_name": "mem0-db",
             "collection_name": "mem0-collection",
-            "user": "my-user",
-            "password": "my-password",
+            "mongo_uri":"mongodb://username:password@localhost:27017"
         }
     }
 }
@@ -41,9 +40,6 @@ Here are the parameters available for configuring MongoDB:
 | db_name | Name of the MongoDB database | `"mem0_db"` |
 | collection_name | Name of the MongoDB collection | `"mem0_collection"` |
 | embedding_model_dims | Dimensions of the embedding vectors | `1536` |
-| user | MongoDB user for authentication | `None` |
-| password | Password for the MongoDB user | `None` |
-| host | MongoDB host | `"localhost"` |
-| port | MongoDB port | `27017` |
+| mongo_uri | The mongo URI connection string | mongodb://username:password@localhost:27017 |
 
-> **Note**: `user` and `password` must either be provided together or omitted together.
+> **Note**: If Mongo_uri is not provided it will default to mongodb://username:password@localhost:27017.
diff --git a/mem0/configs/vector_stores/mongodb.py b/mem0/configs/vector_stores/mongodb.py
index f3fd4dab..0b0c0929 100644
--- a/mem0/configs/vector_stores/mongodb.py
+++ b/mem0/configs/vector_stores/mongodb.py
@@ -1,6 +1,6 @@
-from typing import Any, Dict, Optional, Callable, List
+from typing import Any, Dict, Optional
 
-from pydantic import BaseModel, Field, root_validator
+from pydantic import BaseModel, Field, model_validator
 
 
 class MongoDBConfig(BaseModel):
@@ -9,29 +9,12 @@ class MongoDBConfig(BaseModel):
     db_name: str = Field("mem0_db", description="Name of the MongoDB database")
     collection_name: str = Field("mem0", description="Name of the MongoDB collection")
     embedding_model_dims: Optional[int] = Field(1536, description="Dimensions of the embedding vectors")
-    user: Optional[str] = Field(None, description="MongoDB user for authentication")
-    password: Optional[str] = Field(None, description="Password for the MongoDB user")
-    host: Optional[str] = Field("localhost", description="MongoDB host. Default is 'localhost'")
-    port: Optional[int] = Field(27017, description="MongoDB port. Default is 27017")
+    mongo_uri: str = Field("mongodb://localhost:27017", description="MongoDB URI. Default is mongodb://localhost:27017")
 
-    @root_validator(pre=True)
-    def check_auth_and_connection(cls, values):
-        user = values.get("user")
-        password = values.get("password")
-        if (user is None) != (password is None):
-            raise ValueError("Both 'user' and 'password' must be provided together or omitted together.")
-
-        host = values.get("host")
-        port = values.get("port")
-        if host is None:
-            raise ValueError("The 'host' must be provided.")
-        if port is None:
-            raise ValueError("The 'port' must be provided.")
-        return values
-
-    @root_validator(pre=True)
+    @model_validator(mode='before')
+    @classmethod
     def validate_extra_fields(cls, values: Dict[str, Any]) -> Dict[str, Any]:
-        allowed_fields = set(cls.__fields__)
+        allowed_fields = set(cls.model_fields.keys())
         input_fields = set(values.keys())
         extra_fields = input_fields - allowed_fields
         if extra_fields:
diff --git a/mem0/vector_stores/mongodb.py b/mem0/vector_stores/mongodb.py
index 0a225fc5..49a539f6 100644
--- a/mem0/vector_stores/mongodb.py
+++ b/mem0/vector_stores/mongodb.py
@@ -22,7 +22,7 @@ class OutputData(BaseModel):
     payload: Optional[dict]
 
 
-class MongoVector(VectorStoreBase):
+class MongoDB(VectorStoreBase):
     VECTOR_TYPE = "knnVector"
     SIMILARITY_METRIC = "cosine"
 
diff --git a/tests/vector_stores/test_mongodb.py b/tests/vector_stores/test_mongodb.py
index 370d5322..066c7b17 100644
--- a/tests/vector_stores/test_mongodb.py
+++ b/tests/vector_stores/test_mongodb.py
@@ -1,7 +1,6 @@
-import time
 import pytest
 from unittest.mock import MagicMock, patch
-from mem0.vector_stores.mongodb import MongoVector
+from mem0.vector_stores.mongodb import MongoDB
 from pymongo.operations import SearchIndexModel
 
 @pytest.fixture
@@ -16,12 +15,11 @@ def mongo_vector_fixture(mock_mongo_client):
     mock_collection.find.return_value = []
     mock_db.list_collection_names.return_value = []
 
-    mongo_vector = MongoVector(
+    mongo_vector = MongoDB(
         db_name="test_db",
         collection_name="test_collection",
         embedding_model_dims=1536,
-        user="username",
-        password="password",
+        mongo_uri="mongodb://username:password@localhost:27017"
     )
     return mongo_vector, mock_collection, mock_db
 
@@ -48,7 +46,7 @@ def test_initalize_create_col(mongo_vector_fixture):
                 "fields": {
                     "embedding": {
                         "type": "knnVector",
-                        "d": 1536,
+                        "dimensions": 1536,
                         "similarity": "cosine",
                     }
                 }