diff --git a/packages/googlecloud/functions/getanswer/inquirer.py b/packages/googlecloud/functions/getanswer/inquirer.py
index e6372077..06507400 100644
--- a/packages/googlecloud/functions/getanswer/inquirer.py
+++ b/packages/googlecloud/functions/getanswer/inquirer.py
@@ -137,7 +137,7 @@ def transform_query_for_date(query):
 def get_indepth_response_from_query(df, db, query, k):
     logger.info("Performing in-depth summary query...")
 
-    llm = ChatOpenAI(model_name="gpt-4-1106-preview")
+    llm = ChatOpenAI(model_name="gpt-4")
 
     template_date_detection = """
         Analyze the following query: "{query}".
diff --git a/packages/googlecloud/functions/getanswer/requirements.txt b/packages/googlecloud/functions/getanswer/requirements.txt
index a7e27b65..83e78d1c 100644
--- a/packages/googlecloud/functions/getanswer/requirements.txt
+++ b/packages/googlecloud/functions/getanswer/requirements.txt
@@ -3,7 +3,7 @@ functions-framework
 flask
 google-cloud-error-reporting
 python-dotenv
-langchain
+langchain==0.0.330
 openai==0.28.1
 google-api-python-client # Google API
 google-search-results # SerpAPI