diff --git a/mem0/client/project.py b/mem0/client/project.py
index 8b1aef72f..371c9932d 100644
--- a/mem0/client/project.py
+++ b/mem0/client/project.py
@@ -3,7 +3,7 @@ from abc import ABC, abstractmethod
 from typing import Any, Dict, List, Optional
 
 import httpx
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, ConfigDict, Field
 
 from mem0.client.utils import api_error_handler
 from mem0.memory.telemetry import capture_client_event
@@ -20,9 +20,7 @@ class ProjectConfig(BaseModel):
     project_id: Optional[str] = Field(default=None, description="Project ID")
     user_email: Optional[str] = Field(default=None, description="User email")
 
-    class Config:
-        validate_assignment = True
-        extra = "forbid"
+    model_config = ConfigDict(validate_assignment=True, extra="forbid")
 
 
 class BaseProject(ABC):
diff --git a/mem0/configs/vector_stores/azure_ai_search.py b/mem0/configs/vector_stores/azure_ai_search.py
index 79cfe1796..9b1a33ae5 100644
--- a/mem0/configs/vector_stores/azure_ai_search.py
+++ b/mem0/configs/vector_stores/azure_ai_search.py
@@ -1,6 +1,6 @@
 from typing import Any, Dict, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 class AzureAISearchConfig(BaseModel):
@@ -54,6 +54,4 @@ class AzureAISearchConfig(BaseModel):
 
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/baidu.py b/mem0/configs/vector_stores/baidu.py
index ad27f4cb3..6018fe3cf 100644
--- a/mem0/configs/vector_stores/baidu.py
+++ b/mem0/configs/vector_stores/baidu.py
@@ -1,6 +1,6 @@
 from typing import Any, Dict
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 class BaiduDBConfig(BaseModel):
@@ -24,6 +24,4 @@ class BaiduDBConfig(BaseModel):
             )
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/chroma.py b/mem0/configs/vector_stores/chroma.py
index 664807b85..cf9104237 100644
--- a/mem0/configs/vector_stores/chroma.py
+++ b/mem0/configs/vector_stores/chroma.py
@@ -1,6 +1,6 @@
 from typing import Any, ClassVar, Dict, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 class ChromaDbConfig(BaseModel):
@@ -35,6 +35,4 @@ class ChromaDbConfig(BaseModel):
             )
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/databricks.py b/mem0/configs/vector_stores/databricks.py
index 8729590a6..6af0664bc 100644
--- a/mem0/configs/vector_stores/databricks.py
+++ b/mem0/configs/vector_stores/databricks.py
@@ -1,6 +1,6 @@
 from typing import Any, Dict, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 from databricks.sdk.service.vectorsearch import EndpointType, VectorIndexType, PipelineType
 
@@ -58,6 +58,4 @@ class DatabricksConfig(BaseModel):
 
         return self
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/faiss.py b/mem0/configs/vector_stores/faiss.py
index b77a8add3..bbefc6dc5 100644
--- a/mem0/configs/vector_stores/faiss.py
+++ b/mem0/configs/vector_stores/faiss.py
@@ -1,6 +1,6 @@
 from typing import Any, Dict, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 class FAISSConfig(BaseModel):
@@ -34,6 +34,4 @@ class FAISSConfig(BaseModel):
             )
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/langchain.py b/mem0/configs/vector_stores/langchain.py
index c41784067..d312b4642 100644
--- a/mem0/configs/vector_stores/langchain.py
+++ b/mem0/configs/vector_stores/langchain.py
@@ -1,6 +1,6 @@
 from typing import Any, ClassVar, Dict
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 class LangchainConfig(BaseModel):
@@ -27,6 +27,4 @@ class LangchainConfig(BaseModel):
             )
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/milvus.py b/mem0/configs/vector_stores/milvus.py
index 4ad964457..2227ffe5d 100644
--- a/mem0/configs/vector_stores/milvus.py
+++ b/mem0/configs/vector_stores/milvus.py
@@ -1,7 +1,7 @@
 from enum import Enum
 from typing import Any, Dict
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 class MetricType(str, Enum):
@@ -39,6 +39,4 @@ class MilvusDBConfig(BaseModel):
             )
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/pinecone.py b/mem0/configs/vector_stores/pinecone.py
index 0474b9ac6..caacf3c64 100644
--- a/mem0/configs/vector_stores/pinecone.py
+++ b/mem0/configs/vector_stores/pinecone.py
@@ -1,7 +1,7 @@
 import os
 from typing import Any, Dict, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 class PineconeConfig(BaseModel):
@@ -52,6 +52,4 @@ class PineconeConfig(BaseModel):
             )
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/qdrant.py b/mem0/configs/vector_stores/qdrant.py
index f8628d332..556b45ed0 100644
--- a/mem0/configs/vector_stores/qdrant.py
+++ b/mem0/configs/vector_stores/qdrant.py
@@ -1,6 +1,6 @@
 from typing import Any, ClassVar, Dict, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 class QdrantConfig(BaseModel):
@@ -44,6 +44,4 @@ class QdrantConfig(BaseModel):
             )
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/redis.py b/mem0/configs/vector_stores/redis.py
index efa442dc1..6ae3a56f7 100644
--- a/mem0/configs/vector_stores/redis.py
+++ b/mem0/configs/vector_stores/redis.py
@@ -1,6 +1,6 @@
 from typing import Any, Dict
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 # TODO: Upgrade to latest pydantic version
@@ -21,6 +21,4 @@ class RedisDBConfig(BaseModel):
             )
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/s3_vectors.py b/mem0/configs/vector_stores/s3_vectors.py
index 1cd4f2a3c..95c50f675 100644
--- a/mem0/configs/vector_stores/s3_vectors.py
+++ b/mem0/configs/vector_stores/s3_vectors.py
@@ -1,6 +1,6 @@
 from typing import Any, Dict, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 class S3VectorsConfig(BaseModel):
@@ -29,6 +29,4 @@ class S3VectorsConfig(BaseModel):
             )
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/upstash_vector.py b/mem0/configs/vector_stores/upstash_vector.py
index b7c4d14f5..d4c3c7c3b 100644
--- a/mem0/configs/vector_stores/upstash_vector.py
+++ b/mem0/configs/vector_stores/upstash_vector.py
@@ -1,7 +1,7 @@
 import os
 from typing import Any, ClassVar, Dict, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 try:
     from upstash_vector import Index
@@ -31,6 +31,4 @@ class UpstashVectorConfig(BaseModel):
             raise ValueError("Either a client or URL and token must be provided.")
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/mem0/configs/vector_stores/vertex_ai_vector_search.py b/mem0/configs/vector_stores/vertex_ai_vector_search.py
index e21532901..8de876062 100644
--- a/mem0/configs/vector_stores/vertex_ai_vector_search.py
+++ b/mem0/configs/vector_stores/vertex_ai_vector_search.py
@@ -1,6 +1,6 @@
 from typing import Optional
 
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, ConfigDict, Field
 
 
 class GoogleMatchingEngineConfig(BaseModel):
@@ -14,7 +14,7 @@ class GoogleMatchingEngineConfig(BaseModel):
     credentials_path: Optional[str] = Field(None, description="Path to service account credentials file")
     vector_search_api_endpoint: Optional[str] = Field(None, description="Vector search API endpoint")
 
-    model_config = {"extra": "forbid"}
+    model_config = ConfigDict(extra="forbid")
 
     def __init__(self, **kwargs):
         super().__init__(**kwargs)
diff --git a/mem0/configs/vector_stores/weaviate.py b/mem0/configs/vector_stores/weaviate.py
index 39b465112..f248344ad 100644
--- a/mem0/configs/vector_stores/weaviate.py
+++ b/mem0/configs/vector_stores/weaviate.py
@@ -1,6 +1,6 @@
 from typing import Any, ClassVar, Dict, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 
 class WeaviateConfig(BaseModel):
@@ -38,6 +38,4 @@ class WeaviateConfig(BaseModel):
 
         return values
 
-    model_config = {
-        "arbitrary_types_allowed": True,
-    }
+    model_config = ConfigDict(arbitrary_types_allowed=True)
diff --git a/openmemory/api/app/schemas.py b/openmemory/api/app/schemas.py
index f5462e7f6..fd47b643d 100644
--- a/openmemory/api/app/schemas.py
+++ b/openmemory/api/app/schemas.py
@@ -2,7 +2,7 @@ from datetime import datetime
 from typing import List, Optional
 from uuid import UUID
 
-from pydantic import BaseModel, Field, validator
+from pydantic import BaseModel, ConfigDict, Field, validator
 
 
 class MemoryBase(BaseModel):
@@ -33,8 +33,7 @@ class Memory(MemoryBase):
     categories: Optional[List[Category]] = None
     app: App
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 class MemoryUpdate(BaseModel):
     content: Optional[str] = None