diff --git a/backend/api/pyproject.toml b/backend/api/pyproject.toml
index f8873a15abda..ea15a5c72aef 100644
--- a/backend/api/pyproject.toml
+++ b/backend/api/pyproject.toml
@@ -32,7 +32,7 @@ dependencies = [
     "markdownify>=0.13.1",
     "langchain-openai>=0.1.21",
     "resend>=2.4.0",
-    "langchain>=0.2.14,<0.3.0",
+    "langchain>=0.3.2,<0.4.0",
     "litellm>=1.43.15",
     "openai>=1.40.8",
     "tiktoken>=0.7.0",
diff --git a/backend/core/pyproject.toml b/backend/core/pyproject.toml
index 0c5fa7cf9903..207eb5654293 100644
--- a/backend/core/pyproject.toml
+++ b/backend/core/pyproject.toml
@@ -8,7 +8,7 @@ authors = [
 dependencies = [
     "pydantic>=2.8.2",
     "langchain-core>=0.2.38",
-    "langchain>=0.2.14,<0.3.0",
+    "langchain>=0.3.2,<0.4.0",
     "langgraph>=0.2.14",
     "httpx>=0.27.0",
     "rich>=13.7.1",