diff --git a/nonebot/drivers/websockets.py b/nonebot/drivers/websockets.py
index 826e7994..4790f22d 100644
--- a/nonebot/drivers/websockets.py
+++ b/nonebot/drivers/websockets.py
@@ -69,6 +69,8 @@ class Mixin(WebSocketClientMixin):
     @override
     @asynccontextmanager
     async def websocket(self, setup: Request) -> AsyncGenerator["WebSocket", None]:
+        if setup.proxy is not None:
+            logger.warning("proxy is not supported by websockets driver")
         connection = Connect(
             str(setup.url),
             extra_headers={**setup.headers, **setup.cookies.as_header(setup)},