diff --git a/backend/danswer/llm/chat_llm.py b/backend/danswer/llm/chat_llm.py
index b0384c314d07..5e893790a926 100644
--- a/backend/danswer/llm/chat_llm.py
+++ b/backend/danswer/llm/chat_llm.py
@@ -2,9 +2,9 @@ import abc
 from collections.abc import Iterator
 
 import litellm  # type:ignore
-from langchain.chat_models import ChatLiteLLM
 from langchain.chat_models.base import BaseChatModel
 from langchain.schema.language_model import LanguageModelInput
+from langchain_community.chat_models import ChatLiteLLM
 
 from danswer.configs.app_configs import LOG_ALL_MODEL_INTERACTIONS
 from danswer.configs.model_configs import GEN_AI_API_ENDPOINT
diff --git a/backend/requirements/default.txt b/backend/requirements/default.txt
index 35c97bd6523f..423b87cfeadc 100644
--- a/backend/requirements/default.txt
+++ b/backend/requirements/default.txt
@@ -6,6 +6,7 @@ beautifulsoup4==4.12.2
 celery==5.3.4
 chardet==5.2.0
 dask==2023.8.1
+ddtrace==2.6.5
 distributed==2023.8.1
 fastapi==0.109.2
 fastapi-users==12.1.3
@@ -22,8 +23,8 @@ httpx[http2]==0.23.3
 httpx-oauth==0.11.2
 huggingface-hub==0.20.1
 jira==3.5.1
-langchain==0.0.340
-litellm==1.7.5
+langchain==0.1.9
+litellm==1.27.10
 llama-index==0.9.45
 Mako==1.2.4
 msal==1.26.0