diff --git a/apps/api/requirements-vercel.txt b/apps/api/requirements-vercel.txt
index 8a02767..54bc7c3 100644
--- a/apps/api/requirements-vercel.txt
+++ b/apps/api/requirements-vercel.txt
@@ -5,7 +5,7 @@ fastapi>=0.115
 uvicorn[standard]>=0.30
 pydantic>=2.7
 python-dotenv>=1.0
-sse-starlette>=2.1
+sse-starlette>=3.4.8
 
 langchain-core>=0.3.0
 langchain>=0.3.0
diff --git a/apps/api/requirements.txt b/apps/api/requirements.txt
index 6c53d76..23b1811 100644
--- a/apps/api/requirements.txt
+++ b/apps/api/requirements.txt
@@ -28,5 +28,5 @@ wikipedia>=1.4
 beautifulsoup4>=4.12
 
 # API
-sse-starlette>=2.1
+sse-starlette>=3.4.8
 httpx>=0.27