diff --git a/langchain_tools_demo/requirements.txt b/langchain_tools_demo/requirements.txt
index 0b5dd3cd..7c0e0b65 100644
--- a/langchain_tools_demo/requirements.txt
+++ b/langchain_tools_demo/requirements.txt
@@ -3,7 +3,7 @@ google-cloud-aiplatform==1.37.0
 google-auth==2.25.1
 itsdangerous==2.1.2
 jinja2==3.1.2
-langchain==0.0.346
+langchain==0.0.347
 markdown==3.5.1
 types-Markdown==3.5.0.3
 uvicorn[standard]==0.24.0.post1
\ No newline at end of file
diff --git a/retrieval_service/requirements.txt b/retrieval_service/requirements.txt
index 51fe3b04..fc9d57d1 100644
--- a/retrieval_service/requirements.txt
+++ b/retrieval_service/requirements.txt
@@ -2,7 +2,7 @@ asyncpg==0.29.0
 fastapi==0.105.0
 google-cloud-firestore==2.13.1
 google-cloud-aiplatform==1.37.0
-langchain==0.0.346
+langchain==0.0.347
 pgvector==0.2.4
 pydantic==2.5.2
 uvicorn[standard]==0.24.0.post1