diff --git a/requirements.txt b/requirements.txt
index 082781e..5d22b84 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ pgvector>=0.4.0                 # pgvector type adapter for psycopg
 # --- API stack ------------------------------------------------------------
 fastapi>=0.136.0
 uvicorn[standard]>=0.46.0
-sse-starlette>=3.3.0
+sse-starlette>=3.4.4
 pydantic>=2.13.0
 
 # --- Model Context Protocol ----------------------------------------------