diff --git a/packages/backend/src/cache/faiss_index_general.dvc b/packages/backend/src/cache/faiss_index_general.dvc
index b3b63437..5be6d6c5 100644
--- a/packages/backend/src/cache/faiss_index_general.dvc
+++ b/packages/backend/src/cache/faiss_index_general.dvc
@@ -1,5 +1,5 @@
 outs:
-- md5: 1da4b1d88045a2adbc87e5d11c0a6af8.dir
+- md5: 0b178596139757a23f4b74274688c17c.dir
   size: 85685475
   nfiles: 2
   hash: md5
diff --git a/packages/backend/src/cache/faiss_index_in_depth.dvc b/packages/backend/src/cache/faiss_index_in_depth.dvc
index 96aed5ad..74ea8129 100644
--- a/packages/backend/src/cache/faiss_index_in_depth.dvc
+++ b/packages/backend/src/cache/faiss_index_in_depth.dvc
@@ -1,5 +1,5 @@
 outs:
-- md5: 038f50d4fd4c158b138d626f0fe19c2e.dir
+- md5: 19c005b01a5c795c66428d281fd5222e.dir
   size: 85685475
   nfiles: 2
   hash: md5
diff --git a/packages/backend/src/preprocessor.py b/packages/backend/src/preprocessor.py
index 0c54d94f..e131f859 100644
--- a/packages/backend/src/preprocessor.py
+++ b/packages/backend/src/preprocessor.py
@@ -8,7 +8,7 @@
 from langchain.chains import LLMChain, HypotheticalDocumentEmbedder
 from langchain.prompts import PromptTemplate
 from langchain.vectorstores.faiss import FAISS
-from langchain.chat_models import ChatOpenAI
+from langchain import OpenAI
 from pathlib import Path
 import shutil
 
@@ -17,7 +17,7 @@
 
 
 def create_embeddings():
-    llm = ChatOpenAI(model="gpt-4")
+    llm = OpenAI(model="gpt-4")
 
     base_embeddings = OpenAIEmbeddings()
 
diff --git a/packages/googlecloud/functions/getanswer/cache/faiss_index_general.dvc b/packages/googlecloud/functions/getanswer/cache/faiss_index_general.dvc
index b3b63437..5be6d6c5 100644
--- a/packages/googlecloud/functions/getanswer/cache/faiss_index_general.dvc
+++ b/packages/googlecloud/functions/getanswer/cache/faiss_index_general.dvc
@@ -1,5 +1,5 @@
 outs:
-- md5: 1da4b1d88045a2adbc87e5d11c0a6af8.dir
+- md5: 0b178596139757a23f4b74274688c17c.dir
   size: 85685475
   nfiles: 2
   hash: md5
diff --git a/packages/googlecloud/functions/getanswer/cache/faiss_index_in_depth.dvc b/packages/googlecloud/functions/getanswer/cache/faiss_index_in_depth.dvc
index 96aed5ad..74ea8129 100644
--- a/packages/googlecloud/functions/getanswer/cache/faiss_index_in_depth.dvc
+++ b/packages/googlecloud/functions/getanswer/cache/faiss_index_in_depth.dvc
@@ -1,5 +1,5 @@
 outs:
-- md5: 038f50d4fd4c158b138d626f0fe19c2e.dir
+- md5: 19c005b01a5c795c66428d281fd5222e.dir
   size: 85685475
   nfiles: 2
   hash: md5
diff --git a/packages/googlecloud/functions/getanswer/helper.py b/packages/googlecloud/functions/getanswer/helper.py
index 5f63a6b1..f72598ed 100644
--- a/packages/googlecloud/functions/getanswer/helper.py
+++ b/packages/googlecloud/functions/getanswer/helper.py
@@ -4,6 +4,7 @@
 from langchain.chains import LLMChain, HypotheticalDocumentEmbedder
 from langchain.prompts import PromptTemplate
 from langchain.chat_models import ChatOpenAI
+from langchain import OpenAI
 import logging
 import pandas as pd
 
@@ -37,7 +38,7 @@ def get_dbs():
 
 
 def create_embeddings():
-    llm = ChatOpenAI(model="gpt-4")
+    llm = OpenAI(model="gpt-4")
 
     base_embeddings = OpenAIEmbeddings()
 
diff --git a/packages/googlecloud/functions/getanswer/requirements.txt b/packages/googlecloud/functions/getanswer/requirements.txt
index 9bd7bbc1..f1d4fc71 100644
--- a/packages/googlecloud/functions/getanswer/requirements.txt
+++ b/packages/googlecloud/functions/getanswer/requirements.txt
@@ -3,8 +3,8 @@ functions-framework
 flask
 google-cloud-error-reporting
 python-dotenv
-langchain==0.0.330
-openai
+langchain
+openai==1.1.1
 google-api-python-client # Google API
 google-search-results # SerpAPI
 youtube-transcript-api