diff --git a/requirements.lite.txt b/requirements.lite.txt
index 98e9fb93..cb1afe80 100644
--- a/requirements.lite.txt
+++ b/requirements.lite.txt
@@ -1,4 +1,4 @@
-langchain==0.1.12
+langchain==1.3.9
 langchain_community==0.0.34
 langchain_openai==0.0.8
 langchain_core==0.1.45
diff --git a/requirements.txt b/requirements.txt
index edf53ce5..906af092 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-langchain==0.1.12
+langchain==1.3.9
 langchain_community==0.0.34
 langchain_openai==0.0.8
 langchain_core==0.1.45