diff --git a/examples/agent/server.py b/examples/agent/server.py
index 2eb32fc1..f5fb4a28 100755
--- a/examples/agent/server.py
+++ b/examples/agent/server.py
@@ -23,12 +23,12 @@
 from langchain.agents import AgentExecutor
 from langchain.agents.format_scratchpad import format_to_openai_functions
 from langchain.agents.output_parsers import OpenAIFunctionsAgentOutputParser
-from langchain.pydantic_v1 import BaseModel
 from langchain_community.vectorstores import FAISS
 from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
 from langchain_core.tools import tool
 from langchain_core.utils.function_calling import format_tool_to_openai_function
 from langchain_openai import ChatOpenAI, OpenAIEmbeddings
+from pydantic import BaseModel
 
 from langserve import add_routes
 
diff --git a/examples/agent_custom_streaming/server.py b/examples/agent_custom_streaming/server.py
index 736a0858..1e0226b2 100755
--- a/examples/agent_custom_streaming/server.py
+++ b/examples/agent_custom_streaming/server.py
@@ -57,9 +57,9 @@
 from langchain_core.tools import tool
 from langchain_core.utils.function_calling import format_tool_to_openai_tool
 from langchain_openai import ChatOpenAI
+from pydantic import BaseModel
 
 from langserve import add_routes
-from langserve.pydantic_v1 import BaseModel
 
 prompt = ChatPromptTemplate.from_messages(
     [
diff --git a/examples/agent_with_history/server.py b/examples/agent_with_history/server.py
index 5435e1f3..cec4e94b 100755
--- a/examples/agent_with_history/server.py
+++ b/examples/agent_with_history/server.py
@@ -36,9 +36,9 @@
 from langchain_core.tools import tool
 from langchain_core.utils.function_calling import format_tool_to_openai_tool
 from langchain_openai import ChatOpenAI
+from pydantic import BaseModel, Field
 
 from langserve import add_routes
-from langserve.pydantic_v1 import BaseModel, Field
 
 prompt = ChatPromptTemplate.from_messages(
     [
diff --git a/examples/auth/api_handler/server.py b/examples/auth/api_handler/server.py
index 862cbbe4..e2fcf667 100755
--- a/examples/auth/api_handler/server.py
+++ b/examples/auth/api_handler/server.py
@@ -44,10 +44,10 @@
 )
 from langchain_core.vectorstores import VectorStore
 from langchain_openai import OpenAIEmbeddings
+from pydantic import BaseModel, ConfigDict
 from typing_extensions import Annotated
 
 from langserve import APIHandler
-from langserve.pydantic_v1 import BaseModel
 
 
 class User(BaseModel):
@@ -150,10 +150,9 @@ class PerUserVectorstore(RunnableSerializable):
     user_id: Optional[str]
     vectorstore: VectorStore
 
-    class Config:
-        # Allow arbitrary types since VectorStore is an abstract interface
-        # and not a pydantic model
-        arbitrary_types_allowed = True
+    model_config = ConfigDict(
+        arbitrary_types_allowed=True,
+    )
 
     def _invoke(
         self, input: str, config: Optional[RunnableConfig] = None, **kwargs: Any
diff --git a/examples/auth/per_req_config_modifier/server.py b/examples/auth/per_req_config_modifier/server.py
index 26f90e01..6631a8d0 100755
--- a/examples/auth/per_req_config_modifier/server.py
+++ b/examples/auth/per_req_config_modifier/server.py
@@ -45,10 +45,10 @@
 )
 from langchain_core.vectorstores import VectorStore
 from langchain_openai import OpenAIEmbeddings
+from pydantic import BaseModel, ConfigDict
 from typing_extensions import Annotated
 
 from langserve import add_routes
-from langserve.pydantic_v1 import BaseModel
 
 
 class User(BaseModel):
@@ -147,10 +147,9 @@ class PerUserVectorstore(RunnableSerializable):
     user_id: Optional[str]
     vectorstore: VectorStore
 
-    class Config:
-        # Allow arbitrary types since VectorStore is an abstract interface
-        # and not a pydantic model
-        arbitrary_types_allowed = True
+    model_config = ConfigDict(
+        arbitrary_types_allowed=True,
+    )
 
     def _invoke(
         self, input: str, config: Optional[RunnableConfig] = None, **kwargs: Any
diff --git a/examples/chat_playground/legacy_input/server.py b/examples/chat_playground/legacy_input/server.py
index 415259b8..0183928b 100644
--- a/examples/chat_playground/legacy_input/server.py
+++ b/examples/chat_playground/legacy_input/server.py
@@ -8,9 +8,9 @@
 from langchain_anthropic import ChatAnthropic
 from langchain_core.messages import AIMessage, HumanMessage, SystemMessage
 from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
+from pydantic import BaseModel, Field
 
 from langserve import add_routes
-from langserve.pydantic_v1 import BaseModel, Field
 
 app = FastAPI(
     title="LangChain Server",
diff --git a/examples/chat_playground/server.py b/examples/chat_playground/server.py
index ddf6aafb..89a08ecc 100755
--- a/examples/chat_playground/server.py
+++ b/examples/chat_playground/server.py
@@ -8,9 +8,9 @@
 from langchain_anthropic.chat_models import ChatAnthropic
 from langchain_core.messages import AIMessage, HumanMessage, SystemMessage
 from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
+from pydantic import BaseModel, Field
 
 from langserve import add_routes
-from langserve.pydantic_v1 import BaseModel, Field
 
 app = FastAPI(
     title="LangChain Server",
diff --git a/examples/chat_with_persistence/server.py b/examples/chat_with_persistence/server.py
index b2c87e75..b239ec32 100755
--- a/examples/chat_with_persistence/server.py
+++ b/examples/chat_with_persistence/server.py
@@ -18,9 +18,9 @@
 from langchain_core.chat_history import BaseChatMessageHistory
 from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
 from langchain_core.runnables.history import RunnableWithMessageHistory
+from pydantic import BaseModel, Field
 
 from langserve import add_routes
-from langserve.pydantic_v1 import BaseModel, Field
 
 
 def _is_valid_identifier(value: str) -> bool:
diff --git a/examples/configurable_agent_executor/server.py b/examples/configurable_agent_executor/server.py
index 7ce73651..d215efcb 100755
--- a/examples/configurable_agent_executor/server.py
+++ b/examples/configurable_agent_executor/server.py
@@ -20,7 +20,6 @@
 from langchain.agents import AgentExecutor
 from langchain.agents.format_scratchpad import format_to_openai_functions
 from langchain.agents.output_parsers import OpenAIFunctionsAgentOutputParser
-from langchain.pydantic_v1 import BaseModel
 from langchain_community.vectorstores import FAISS
 from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
 from langchain_core.runnables import (
@@ -33,6 +32,7 @@
 from langchain_core.tools import tool
 from langchain_core.utils.function_calling import format_tool_to_openai_function
 from langchain_openai import ChatOpenAI, OpenAIEmbeddings
+from pydantic import BaseModel
 
 from langserve import add_routes
 
diff --git a/examples/configurable_retrieval/server.py b/examples/configurable_retrieval/server.py
index c6e227cc..72e1db5d 100755
--- a/examples/configurable_retrieval/server.py
+++ b/examples/configurable_retrieval/server.py
@@ -15,9 +15,9 @@
 )
 from langchain_core.vectorstores import VectorStore
 from langchain_openai import OpenAIEmbeddings
+from pydantic import BaseModel, Field
 
 from langserve import add_routes
-from langserve.pydantic_v1 import BaseModel, Field
 
 vectorstore1 = FAISS.from_texts(
     ["cats like fish", "dogs like sticks"], embedding=OpenAIEmbeddings()
diff --git a/examples/conversational_retrieval_chain/server.py b/examples/conversational_retrieval_chain/server.py
index e3cc1d95..e4c75874 100755
--- a/examples/conversational_retrieval_chain/server.py
+++ b/examples/conversational_retrieval_chain/server.py
@@ -18,9 +18,9 @@
 from langchain_core.prompts import ChatPromptTemplate, PromptTemplate, format_document
 from langchain_core.runnables import RunnableMap, RunnablePassthrough
 from langchain_openai import ChatOpenAI, OpenAIEmbeddings
+from pydantic import BaseModel, Field
 
 from langserve import add_routes
-from langserve.pydantic_v1 import BaseModel, Field
 
 _TEMPLATE = """Given the following conversation and a follow up question, rephrase the 
 follow up question to be a standalone question, in its original language.
diff --git a/examples/file_processing/server.py b/examples/file_processing/server.py
index c3ee4a30..4645291b 100755
--- a/examples/file_processing/server.py
+++ b/examples/file_processing/server.py
@@ -15,10 +15,10 @@
 import base64
 
 from fastapi import FastAPI
-from langchain.pydantic_v1 import Field
 from langchain_community.document_loaders.parsers.pdf import PDFMinerParser
 from langchain_core.document_loaders import Blob
 from langchain_core.runnables import RunnableLambda
+from pydantic import Field
 
 from langserve import CustomUserType, add_routes
 
diff --git a/examples/widgets/chat/message_list/server.py b/examples/widgets/chat/message_list/server.py
index bc23463b..40fc1045 100755
--- a/examples/widgets/chat/message_list/server.py
+++ b/examples/widgets/chat/message_list/server.py
@@ -10,9 +10,9 @@
 from langchain_core.messages import AIMessage, HumanMessage, SystemMessage
 from langchain_core.output_parsers import StrOutputParser
 from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
+from pydantic import BaseModel, Field
 
 from langserve import add_routes
-from langserve.pydantic_v1 import BaseModel, Field
 
 app = FastAPI(
     title="LangChain Server",
diff --git a/examples/widgets/chat/tuples/server.py b/examples/widgets/chat/tuples/server.py
index 8f80b264..1fbeffd3 100755
--- a/examples/widgets/chat/tuples/server.py
+++ b/examples/widgets/chat/tuples/server.py
@@ -6,7 +6,6 @@
 
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
-from langchain.pydantic_v1 import BaseModel, Field
 from langchain_community.document_loaders.parsers.pdf import PDFMinerParser
 from langchain_core.document_loaders import Blob
 from langchain_core.messages import (
@@ -17,6 +16,7 @@
 )
 from langchain_core.runnables import RunnableLambda, RunnableParallel
 from langchain_openai import ChatOpenAI
+from pydantic import BaseModel, Field
 
 from langserve import CustomUserType
 from langserve.server import add_routes