diff --git a/src/vllm_router/aiohttp_client.py b/src/vllm_router/aiohttp_client.py
index 08b73e8e0..bff3c1200 100644
--- a/src/vllm_router/aiohttp_client.py
+++ b/src/vllm_router/aiohttp_client.py
@@ -26,7 +26,10 @@ def start(self):
         """Instantiate the client. Call from the FastAPI startup hook."""
         # To fully leverage the router's concurrency capabilities,
         # we set the maximum number of connections to be unlimited.
-        self.async_client = aiohttp.ClientSession()
+        connector = aiohttp.TCPConnector(limit=0)
+        self.async_client = aiohttp.ClientSession(
+            connector=connector, connector_owner=True
+        )
         logger.info(f"aiohttp ClientSession instantiated. Id {id(self.async_client)}")
 
     async def stop(self):