diff --git a/copilot-backend/requirements.txt b/copilot-backend/requirements.txt
index 4d13a8c..d272977 100644
--- a/copilot-backend/requirements.txt
+++ b/copilot-backend/requirements.txt
@@ -4,7 +4,7 @@ pydantic==2.9.2
 pydantic-settings==2.5.2
 openai==1.51.0
 httpx==0.27.2
-sse-starlette==2.1.3
+sse-starlette==3.4.4
 python-multipart==0.0.12
 asyncpg==0.29.0
 fastembed==0.4.2