diff --git a/pyproject.toml b/pyproject.toml
index d6e1e37..b8a1aab 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ dependencies = [
     # LLM/AI Libraries
     "openai>=1.59.0",
     "anthropic>=0.42.0",
-    "langchain>=0.3.0",
+    "langchain>=1.4.7",
     "langchain-openai>=0.2.0",
     "langchain-community>=0.3.0",
     "instructor>=1.7.0",
diff --git a/requirements.txt b/requirements.txt
index 75c2fec..a81e209 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ grpcio>=1.68.0
 grpcio-tools>=1.68.0
 openai>=1.59.0
 anthropic>=0.42.0
-langchain>=0.3.0
+langchain>=1.4.7
 langchain-openai>=0.2.0
 langchain-community>=0.3.0
 instructor>=1.7.0