diff --git a/requirements.txt b/requirements.txt
index 9f064e4..0dbf7d5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ tiktoken==0.7.0
 pypdf==4.1.0
 unstructured==0.14.5
 langchain-community==0.0.31
-langchain==0.1.14
+langchain==0.3.3
 langchain-openai==0.1.1
 langchain-google-genai==1.0.1
 langchain-pinecone==0.1.0
diff --git a/setup.cfg b/setup.cfg
index 971afc4..fbdc47c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -18,7 +18,7 @@ install_requires =
     pypdf==4.1.0
     unstructured==0.14.5
     langchain-community==0.0.31
-    langchain==0.1.14
+    langchain==0.3.3
     langchain-openai==0.1.1
     langchain-google-genai==1.0.1
     langchain-pinecone==0.1.0